Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

Thesaurus

efficiency

noun

Synonyms and Antonyms of efficiency

  1. the power to produce a desired result <the proven efficiency of citizen patrols in reducing crime in urban neighborhoods> Synonyms edge, effectiveness, effectualness, efficaciousness, efficacity, efficacy, productivenessRelated Words ability, capability, capacity; potency, puissance, strengthNear Antonyms inability, inadequacy, inadequateness, incompetence, incompetencyAntonyms ineffectiveness, ineffectuality, ineffectualness, inefficiency





Seen and Heard

What made you want to look up efficiency? Please tell us where you read or heard it (including the quote, if possible).