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English definition of “facetious”

facetious

adjective    /fəˈsi·ʃəs/
not seriously meaning what you say, usually in an attempt to be humorous or to trick someone: I make so much money that we never have to worry – I’m being facetious. facetiously    /fəˈsi·ʃəs·li/ adverb "We could spend all our income on health care," she said facetiously.
(Definition of facetious adjective from the Cambridge Academic Content Dictionary © Cambridge University Press)
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