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Synonyms for acrid

adj bitter, sour to taste

Antonyms for acrid

Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

acerbic

adjective. bitter, sharp, or sour

acid

adjective. having acidic, corrosive properties

alkaline

adjective. being basic, not acid (chemically)
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.