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English definition of “bad”

bad

adjective (UNHEALTHY)   /bæd/ (comparative worse  /wɜrs/, superlative worst  /wɜrst/)
(of a person) ill or not well, or (of an illness) serious or severe: a bad back/heart a bad cough bad health He’s in really bad shape. He’s got bad arthritis and can hardly walk.
(Definition of bad adjective (UNHEALTHY) from the Cambridge Academic Content Dictionary © Cambridge University Press)
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