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English definition of “acid”

acid

adjective (UNKIND)    /ˈæs.ɪd/
describes a remark or way of speaking that is cruel or criticizes something in an unkind way: her acid wit When she spoke her tone was acid.Ways of speakingDisapproving and criticizingDamaging reputationUnkind, cruel and unfeelingViolent or aggressiveTreating people or animals badlyInsults and abuse
(Definition of acid adjective (UNKIND) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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