Synonyms and Antonyms for Efficacy

Following is a list of 150 synonym words and phrases that are related to efficacy:

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6 Letter Words

effectimpacttrialssafetymeritspurity

7 Letter Words

utilitysuccesspotencyplaceboquality

8 Letter Words

adequacyvaliditytoxicityaccuracylegalityveracityposology

9 Letter Words

effectiveefficientviabilitysoundnessrelevanceadherencestabilitylongevityrightness

10 Letter Words

usefulnessefficiencyefficacityinefficacyrobustnessdurabilityethicalitypertinencelegitimacyimportanceprevalencyworthinesspermanencelawfulnesscompetencesolubilityprevalencetenabilitycurabilitycompetencyeffeteness

11 Letter Words

efficaciousperformanceineffectivereliabilityfeasibilityeffectivitysuitabilityusefullnessequivalenceharmfulnessworkabilityconsistencybioactivityhomogeneitynontoxicity

12 Letter Words

efficienciestolerabilityeffectualitydesirabilitypracticalitytruthfulnessselfefficacybiostabilityharmlessnessmitogenicityavoidabilityplausibilityimplicitnessagreeabilitycompletenessadequatenessavailabilitytreatabilityadaptability

13 Letter Words

effectivenessacceptabilityapplicabilityaffectivenessoperativenessinnocuousnessconducivenessadjuvanticitypreferabilityexportabilityhealthfulnesspenetrabilityattainabilitypredicabilityequitablenessaffordabilityfabricabilityopportunenessreversibilityeffectualness

14 Letter Words

practicabilityimmunogenicitypredictivenessmeaningfulnesssuccessfulnessjustifiabilityacceptablenessreactogenicityoperationalityperformabilityirrefutabilityintolerabilityconfirmabilitybioequivalenceconclusivenessdispensabilitypersuasivenesseffectuousness

15 Letter Words

efficaciousnessdemonstrabilityineffectivenessappropriatenessquantifiabilityreproducibilitybioavailabilitynoninvasivenessinexpensivenesscontrollabilitytrustworthinessunchangeabilitymeritoriousnesstranslatability

16 Letter Words

implementabilitysatisfactorinessbiocompatibilitypharmacokineticsphytotherapeuticreadministrationtransformabilityimmunomodulatingradiosensitizingbiodegradability

17 Letter Words

costeffectivenessimmunostimulationimmunostimulating

18 Letter Words

cost-effectivenessinterchangeability

19 Letter Words

psychopharmacologic

Using this list of similar-meaning words, you can choose the best synonyms to replace efficacy in your sentences.

Additionally, you'll find antonyms included, perfect for when you need the complete opposite meaning of efficacy in your writing.