De‐co″rous (dē̍‐kō″rŭs or dĕk″ō̍r‐ŭs; 277), a. [L. decōrus, fr. decor comeliness, beauty; akin to decere. See Decent, and cf. Decorum.] Suitable to a character, or to the time, place, and occasion; marked with decorum; becoming; proper; seemly; befitting; as, a decorous speech; decorous behavior; a decorous dress for a judge.
A decorous pretext the war. Motley.
— De‐co″rous‐ly, adv. — De‐co″rous‐ness, n.