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English definition of “casual”

casual

adjective   /ˈkæʒ·u·əl/
B1 Casual clothes are comfortable and not formal.
not planned: a casual remark
relaxed and not seeming very interested in someone or something: a casual manner
casually adverb She was dressed casually in shorts and a T-shirt.
(Definition of casual adjective from the Webster's Essential Mini Dictionary © Cambridge University Press)

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