Ability and Inefficacy

Opposite meaning words

Ability

Ability noun - The physical or mental power to do something.
Usage example: as a result of the accident the once-vigorous athlete lost the ability to walk
Show all Definitions
Synonyms for Ability
Antonyms for Ability
Inefficacy is an antonym for ability.
Nearby Word: able

Inefficacy

Inefficacy noun - A lack of efficacy.
Show all Definitions
Synonyms for Inefficacy
Ability is an antonym for inefficacy in ineffectuality topic.
Similar words of ability

Similar words of inefficacy
Cite this Source
Inefficacy and Ability. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/ability/inefficacy
Ability & Inefficacy. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/ability/inefficacy>.
Inefficacy or Ability. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/ability/inefficacy.

Antonyms for ability


Antonyms for inefficacy

Google Ngram Viewer shows how "ability" and "inefficacy" have occurred on timeline