adj.  de·mur·er, de·mur·est  1.  Modest and reserved in manner or behavior. 2.  Characterized by or suggestive of reserve or modesty: a demure smile; a demure outfit. [Middle English, probably from Anglo-Norman (influenced by Old French mur, meur, mature, serious),  past participle of demurer, to delay, wait; see  DEMUR.] de·murely adv. de·mureness n.  | 
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