idiommainlyUK(USusuallynot the thing to do)notsociallyacceptable:不礼貌;不合礼仪Smoking during amealis not the done thing.吃饭时吸烟是不礼貌的。SMART Vocabulary: related words and phrasesManners & levels of formality
buttoned-down
casualization
ceremonious
ceremoniously
ceremony
formality
formally
genteel
genteelly
gentility
grace
mindyourp's and q'sidiom
non-formal
non-U
over-familiar
propriety
solemnity
unbuttoned
valediction
valedictory
See more results ?(Definition ofnot the done thingfrom theCambridge Advanced Learner's Dictionary & Thesaurus? Cambridge University Press)#https://dictionary.cambridge.org//dictionary/english/not-the-done-thing##