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English definition of “ill”

ill

adjective [before noun] (BAD)    /ɪl/ formal or old-fashioned
C1 bad : ill health Did you experience any ill effects from the treatment ?Not of good qualityRubbish and wasteInformal words for bad
(Definition of ill adjective (BAD) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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