ineffectiveness, ineffectuality, ineffectualness

efficacy, usefulness, potency, relevance, interpretability, efficiency, appropriateness, applicability, responsiveness, ability, acceptability, viability, validity, adherence, productiveness, robustness, effi, relevancy, accuracy, ineffectiveness, credibility, durability, representativeness, practicability, trustworthiness, marketability, worthiness, palatability, receptivity, legitimacy, reliability, healthfulness, persuasiveness, measurability, merits, legality, enforceability, deadliness, defensibility, productivity, competence, susceptibility, desirability, lethality, severity, timeliness, harmfulness, consistency, bioavailability, soundness, efficaciousness, adaptability, antigenicity, readiness, thoroughness, rigorousness, reproducibility, successfulness, practicality, outcomes, rigor, antitumour, intolerability, capability, safeness, communicability, suitability, usability, feasibility, impact, uptake, curability, longevity, conspicuity, cytotoxicity, reboxetine, competitiveness, innovativeness, quality, dependability, clomipramine, fatigability, veracity, seriousness, comprehensiveness, effects, compliance, understandability, intrusiveness, advisability, helpfulness, pervasiveness, rightfulness, chronological age, strength, superiority, importance, authenticity, pimozide, transparency, radiopacity, success, utility, attractiveness, flexibility, predictability, epidemiologic, epidemiological, kinematic, neurophysiologic, psychometric, sociopsychological, aggregative, allometric, anthropometric, benefit, biophysical, correlational, demographic, electrophysiological, ergonomic, idiographic, microeconomic, neurobiological, neurochemical, neurophysiological

efficaciousness, efficacy, incisiveness, trenchancy

., adjuvant, adulterant, adulterator, air defense, built, collapse, cost-benefit analysis, derogation, dog-tired, economic, economical, european law enforcement organisation, europol, exhausted, fagged, fatigued, feeble, follow up, lame, law of diminishing returns, pale, pall, pallid, played out, reinforced, replacement cost, spent, toothless, validity, validness, washed-out, worn-outa, worn outp

potency, power, powerfulness

effectivity, effectuality, effectualness, potency, strength