astronomical, exorbitant, usurious, outrageous, unjustifiable, extortionary, unreasonable, iniquitous, ridiculous, ludicrous, unjustified, derisory, swingeing, unfair, unaffordable, dodgy, exploitative, unconscionable, absurd, extortionist, daft, astronomic, bargain basement, spurious, appalling, obscene, piffling, unjust, workshy, unwarranted, illogical, rapacious, excessive, greedy, unscrupulous, parasitical, dishonest, barmy, piggish, litter lout, uncompetitive, perverse, nosy parker, bodged, intolerable, hefty, hard up, predatory, unremunerative, onerous, outlandish, impecunious, gombeen, extravagant, undercharge, arbitrary, confiscatory, ungodly, overgenerous, overpriced, discountable, irrational, cahoot, joe bloggs, concessionary, insane, underhand, insalubrious, standover, inflated, stratospheric, odious, rubbish, unacceptable, cheap, shameless, conacre, laughable, improvident, irresponsible, dumbos, peppercorn rent, commensurable, cab fare, specious, unhelpful, unmerited, cheep, porterage, illegitimate, unsustainable, lumpen, pernickety, inhuman, scandalous, reasonable, nonsensical, bogus, rip off, welsh, unprincipled, exhorbitant, prohibitive, notional, customary, discriminatory, oppressive, prepaid, unpaid, burdensome, deductible

rack rent

exorbitant, immoderate, outrageous, steep, unconscionable, usurious