Acid
Acid adjective - Having or showing a habitually bad temper.
Usage example: with her acid personality, my aunt could be relied upon to bring some much-needed balance to the holiday gush
Effervescent is an antonym for acid.
Effervescent
Effervescent adjective - Joyously unrestrained.
Acid is an antonym for effervescent.
Nearby Words: effervescence, effervescing
Both words in one sentence
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This is a display of Fridge Brilliance since alcohol and effervescent drinks can be mildly acidic, and acid is a rust remover.
Source: Perma-Stubble
Cite this Source
Effervescent and Acid. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/acid/effervescent
Acid & Effervescent. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/acid/effervescent>.
Effervescent or Acid. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/acid/effervescent.
Google Ngram Viewer shows how "acid" and "effervescent" have occurred on timeline