5 letters:
sized, vised, wised

6 letters:
-sized, odized, prised, prized, unrisd

7 letters:
advised, agnized, assized, demised, devised, excised, incised, iodised, iodized, ionised, ionized, papized, resized, revised, unsized

8 letters:
abatised, abscised, agonised, agonized, analysed, analyzed, anodised, anodized, apprised, apprized, arabized, atomized, azotized, baptised, baptized, capsized, cognised, cognized, cottised, dentized, despised, dialyzed, dualized, ebonized, edenized, egotized, grecized, heroized, iconized, idolised, idolized, iridized, ironized, itemised, itemized, kyanised, kyanized, laicised, laicized, lionised, lionized, midsized, odorized, opalized, outsized, oxidised, oxidized, ozonized, poetized, prevised, realised, realized, reprised, stylised, stylized, surmised, unitised, unitized, unprized, utilised, utilized

9 letters:
alkalized, amortised, amortized, aphorized, arborized, aryanized, autolyzed, botanized, canalised, canalized, canonised, canonized, caponised, caponized, catalyzed, chastised, civilised, civilized, colonised, colonized, colorized, comprised, creolized, curarized, cutinized, deionized, demonised, demonized, deputised, deputized, detonized, digitised, digitized, disguised, disprized, disseised, divinized, downsized, energised, energized, equalised, equalized, ergotized, eternised, eternized, etherized, eulogised, eulogized, exercised, exorcised, exorcized, fabulized, faradized, feminized, finalised, finalized, fluidized, focalised, focalized, hepatized, humanised, humanized, idealised, idealized, immunised, immunized, infamized, islamized, latinised, latinized, legalised, legalized, localised, localized, maderized, man-sized, maximised, maximized, melodized, memorised, memorized, metalized, minimised, minimized, misprized, mobilised, mobilized, monetised, monetized, moralised, moralized, motorised, motorized, nasalised, nasalized, nebulised, nebulized, notarised, notarized, novelized, optimized, organised, organized, oversized, paganised, paganized, panelized, paralyzed, pea-sized, penalised, penalized, polarized, pyrolyzed, quantized, robotized, romanized, rufusized, ruralised, ruralized, sanitised, sanitized, satirised, satirized, simonized, sinicized, solarized, suberised, suberized, surprised, televised, tetanised, tetanized, theorised, theorized, tokenized, totalized, unadvised, unionised, unionized, unrevised, urbanised, urbanized, valorized, vaporised, vaporized, varisized, velarized, vitalised, vitalized, vocalised, vocalized, womanised, womanized

10 letters:
actualised, actualized, advertised, advertized, alchemized, aluminised, aluminized, analogized, anatomized, anglicised, anglicized, animalized, annualised, annualized, annuitised, annuitized, anonymized, apologised, apologized, arabicized, aromatized, authorised, authorized, balkanized, barbarized, bear-sized, bite-sized, brutalised, brutalized, capsulized, carbonised, carbonized, carburised, carnalized, catechized, cicatrised, climatized, cocainized, communized, criticised, criticized, customised, customized, deodorized, deoxidized, derealized, diabolized, dogmatized, dramatised, dramatized, economised, economized, emblemized, empathised, empathized, emphasised, emphasized, epipolized, epitomised, epitomized, eroticized, euphemized, euthanised, euthanized, expertized, factorized, fair-sized, fantasised, fantasized, fertilised, fertilized, fetishized, feudalized, formalised, formalized, formulized, fossilised, fossilized, full-sized, gallicised, gallicized, galvanised, galvanized, germanised, germanized, ghettoised, ghettoized, globalised, globalized, good-sized, gospelised, gospelized, gothicized, harmonised, harmonized, hellenized, hybridised, hybridized, hydrolyzed, hypnotised, hypnotized, improvised, isomerized, italicised, italicized, king-sized, kiwi-sized, labialized, life-sized, linearized, liquidised, liquidized, magnetised, magnetized, mainprised, marbleised, marbleized, matronized, mechanised, mechanized, mediatized, mercerized, mesmerised, mesmerized, metallised, metallized, metastized, methodized, micronized, mirandized, misadvised, modernised, modernized, mysterized, narcotized, necrotized, neologized, neoterized, nonionised, nonionized, normalised, normalized, ostracised, ostracized, oxygenized, palletized, patronised, patronized, pauperised, pauperized, peptonized, pint-sized, platinized, platonized, plus-sized, podzolized, pollenized, posterized, potentized, preconized, prelatized, privatised, privatized, publicised, publicized, pulverised, pulverized, racialized, randomised, randomized, rasterized, reanalyzed, recognised, recognized, rightsized, ritualised, routinized, rubberised, rubberized, ruggedized, sacralized, sanforized, sensitised, sensitized, serialised, serialized, sermonized, sexualised, signalised, signalized, socialised, socialized, solemnised, solemnized, sovietized, stabilised, stabilized, sterilised, sterilized, subsidised, subsidized, subtilised, subtilized, sulfurized, summarised, summarized, supersized, supervised, supervized, syllogized, symbolised, symbolized, synopsized, systemized, tantalised, tantalized, temporised, temporized, tenderized, terrorised, terrorized, texturized, tympanized, tyrannized, unanalysed, unanalyzed, unapprised, unbaptized, undersized, unpromised, unrealised, unrealized, unutilized, vandalised, vandalized, vapourised, vectorized, verbalised, verbalized, vernalized, villanized, visualised, visualized, volcanized, vulcanised, vulcanized, vulgarized, weaponized, winterized

11 letters:
absolutized, adrenalized, aerobicized, aerosolized, africanized, aggrandised, aggrandized, albumenized, allegorized, antagonised, antagonized, apostatized, apple-sized, automatized, bastardised, bastardized, bestialized, bituminized, bowdlerised, bowdlerized, burglarized, burnettized, capitalised, capitalized, caramelised, caramelized, catabolized, categorised, categorized, centralised, centralized, channelized, circumcised, circumcized, classicized, compromised, concertized, concretised, concretized, crystalised, crystalized, dastardized, decimalized, decolonized, decolorised, decolorized, dehumanised, delocalised, delocalized, demobilized, demonetised, demonetized, demoralised, demoralized, denaturised, denaturized, depolarized, devitalised, devitalized, digitalized, doxologized, elasticised, elasticized, enigmatized, eternalised, eternalized, euhemerized, evangelised, evangelized, fanaticized, federalized, fraternised, fraternized, gelatinised, gelatinized, generalised, generalized, glamourized, gluttonized, gormandised, gormandized, grangerized, grape-sized, heathenized, homogenised, homogenized, homologized, human-sized, ill-advised, illegalized, immobilised, immobilized, initialized, inorganized, italianized, jeopardised, jeopardized, journalized, keratinised, keratinized, latibulized, legitimised, legitimized, lethargized, lexicalised, lexicalized, liberalized, literalized, lobotomized, lyophilized, macadamized, martialized, medicalized, metabolized, militarised, militarized, mineralized, minimalized, modularized, moisturised, moisturized, mongrelized, monologized, monopolised, monopolized, mutagenized, naturalised, naturalized, neutralised, neutralized, nominalized, palatalised, palatalized, paralogized, parasitized, pasteurised, pasteurized, peroxidized, plagiarised, plagiarized, plasmolyzed, plasticised, plasticized, polemicized, politicised, politicized, polymerised, polymerized, popularised, popularized, pressurised, pressurized, prioritised, prioritized, puritanized, queen-sized, radicalized, regularized, relativized, reorganised, reorganized, revitalised, revitalized, rhapsodised, rhapsodized, russianized, saccharized, scandalised, scandalized, schematized, sclerotized, scrutinised, scrutinized, securitized, sensualized, siliconized, slenderized, solubilized, specialised, specialized, stigmatised, stigmatized, symmetrized, sympathised, sympathized, symphonized, syncretized, synkronized, synonymized, synthesised, synthesized, synthetized, tabularized, theologized, thermalized, traumatised, traumatized, trivialised, trivialized, unamortized, unchastised, undisguised, unequalised, unequalized, unexercised, unimmunized, unmoralized, unmotorised, unmotorized, unorganised, unorganized, unpolarized, unsurprised, volatilised, volatilized, westernised, westernized

12 letters:
accessorised, accessorized, acclimatised, acclimatized, achromatized, affranchised, alphabetised, alphabetized, americanised, americanized, anesthetized, anthologized, apotheosized, arterialized, breathalysed, breathalyzed, bromoiodized, cannibalised, cannibalized, catheterized, catholicized, cherry-sized, circularized, communalized, computerised, computerized, cookie-sized, corporatized, criminalised, criminalized, crystallised, crystallized, decarbonized, demagnetised, demagnetized, demephitized, democratised, democratized, derecognized, desacralized, desensitised, desensitized, destabilised, destabilized, detribalized, dichotomized, disorganised, disorganized, electrolyzed, emblematized, enfranchised, engine-sized, etherealized, etherialised, europeanised, europeanized, extemporised, extemporized, exteriorized, externalised, externalized, familiarised, familiarized, ferret-sized, formularized, fragmentized, gourmandized, hierarchized, hispanicized, hospitalised, hospitalized, hydrogenized, hyperbolized, hypostatized, hypothesised, hypothesized, imperialized, incentivised, incentivized, infantilized, interiorized, internalised, internalized, marginalised, marginalized, masculinized, matastisized, materialised, materialized, medium-sized, memorialised, memorialized, merchandised, merchandized, metastasised, metastasized, metathesized, middle-sized, miniaturised, miniaturized, mythologized, nationalised, nationalized, nitrogenized, nonunionised, nonunionized, objectivised, objectivized, officialised, officialized, orientalized, parallelized, personalised, personalized, phagocytised, phagocytized, phosphorized, plebeianized, pocket-sized, proselytised, proselytized, pythagorized, rationalised, rationalized, reauthorized, regionalized, renormalized, reprivatized, romanticised, romanticized, schismatized, self-devised, skeletonised, skeletonized, soliloquised, soliloquized, standardised, standardized, suburbanised, suburbanized, subvitalized, synchronised, synchronized, systematized, tautologized, tranquilized, un-romanized, unauthorised, unauthorized, unfertilised, unfertilized, unfranchised, unmechanised, unmechanized, unmodernised, unmodernized, unnormalised, unpatronised, unpatronized, unrecognised, unrecognized, unsterilised, unsterilized, unsubsidized, unsupervised, unverbalised, unverbalized, unvulcanised, unvulcanized, vascularized, vasectomized, verticalized, well-advised

13 letters:
aestheticized, anaesthetized, anathematized, apostrophized, attitudinized, black-a-vised, characterized, christianised, christianized, collectivised, collectivized, containerised, containerized, contemporized, decentralized, delegitimized, demilitarised, demilitarized, demineralized, denaturalized, denuclearized, depoliticised, depoliticized, depressurized, diphthongized, disfranchised, economy-sized, editorialised, editorialized, emotionalised, emotionalized, fictionalised, fictionalized, ill-disguised, illiberalized, insolubilized, legitimatized, misrecognized, municipalized, non-unionized, not surprised, parameterized, parenthesized, philosophized, phlebotomized, porcelainized, potentialized, propagandised, propagandized, psychologized, recapitalised, recapitalized, sectarianized, sectionalised, sectionalized, segmentalized, semicivilized, serpentinized, spiritualized, uncategorized, uncircumcised, uncompromised, underutilised, underutilized, unhomogenised, unhomogenized, unitarianized, universalized, unnaturalised, unnaturalized, unpasteurised, unpasteurized, unspecialised, unspecialized

14 letters:
anagrammatized, bureaucratized, collateralized, commercialised, commercialized, conceptualised, conceptualized, contextualised, contextualized, decriminalised, decriminalized, dehydrogenized, dematerialised, demythologised, demythologized, denationalized, depersonalised, depersonalized, fractionalized, hectocotylized, hyperpolarized, hyposensitized, immaterialized, impersonalized, industrialised, industrialized, irrationalised, irrationalized, metagrabolised, metagrabolized, metagrobolised, metagrobolized, moderate-sized, occidentalized, overdramatized, overemphasised, overemphasized, paradigmatized, particularized, pedestrianised, pedestrianized, phenomenalized, provincialized, psychoanalyzed, recrystallized, remerchandised, revolutionised, revolutionized, tranquilliized, transistorised, transistorized, uncrystallised, uncrystallized, unenfranchised, unstandardized, unsynchronised, unsynchronized, unsystematized, vocationalized, well-organized

15 letters:
disenfranchised, hyperoxygenized, hypersensitised, hypersensitized, hysterectomised, hysterectomized, overcapitalized, overgeneralized, overspecialized, photosensitized, plane-polarized, revolutioniezed, self-actualized, self-fertilised, self-fertilized, sensationalised, sensationalized, sentimentalised, sentimentalized, substantialized, supersensitised, supersensitized, territorialized, wind-fertilized

16 letters:
conventionalised, conventionalized, cosmopolitanized, cross-fertilized, deindustrialized, departmentalized, intellectualised, mischaracterized, photosynthesised, photosynthesized, professionalised, professionalized, uncommercialised, uncommercialized, undercapitalised, undercapitalized, unindustrialised, unindustrialized

17 letters:
anthropomorphized, compartmentalised, hypophysectomised, hypophysectomized, immunocompromised, institutionalised, internationalised, microminiaturized

18 letters:
immuno-compromised, semi-christianized, transcendentalized

20 letters:
noninstitutionalised, noninstitutionalized

6 letters:
leafed