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English definition of “unfit”

unfit

adjective uk   /ʌnˈfɪt/ us  

unfit adjective (NOT HEALTHY)

B1 not healthy because you do too little exercise: I used to take plenty of exercise, but now I'm terribly unfit.Not fit and healthyThin or slender (of people)

unfit adjective (NOT GOOD ENOUGH)

B2 not suitable or good enough for a particular purpose or activity: The building was declared unfit for human habitation.
(Definition of unfit from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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