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English definition of “plain”

plain

adjective     /pleɪn/
SIMPLE B1 simple and not complicated : plain food Plain and ordinaryTedious and uninspiring
NOT MIXED B1 not mixed with other colours , substances , etc : a plain blue carpet plain yoghurt Plain and ordinaryTedious and uninspiring
PERSON A plain person is not attractive to look at.Plain and ordinaryTedious and uninspiringNot attractive to look atSerious and unpleasant
OBVIOUS obvious and clear : [+ (that)] It's quite plain that she doesn't want to talk to me about it. → See also be plain sailingApparent and obviousVisible
(Definition of plain adjective from the Cambridge Learner's Dictionary © Cambridge University Press)

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