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English definition of “serious”


adjective (EXTREME)    /ˈsɪə.ri.əs/ US  /ˈsɪr.i-/
informal extreme in degree or amount : We did some fairly serious walking over the weekend . I mean we're talking serious (= a large amount of) money , right ?Very and extremeComplete and wholeIntensifying expressions informal very good of its type : This is a serious wine , Belle , you've just got to try some.Informal words for goodGood, better and bestQuite good, or not very good
(Definition of serious adjective (EXTREME) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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