List of decorous synonyms and decorous related words.
Christian, accepted, according to Hoyle, acknowledged, admitted, appropriate, approved, au fait, becoming, befitting, being done, ceremonial, ceremonious, civil, civilized, comely, comme il faut, condign, conformable, conforming, conventional, correct, customary, de rigueur, decent, delicate, demure, dignified, done, due, earnest, elegant, felicitous, fit, fitting, formal, frowning, genteel, gentlemanly, good, grave, grim, grim-faced, grim-visaged, happy, hieratic, kosher, ladylike, liturgic, long-faced, mannerly, meet, modest, nice, normal, normative, orthodox, polished, polite, pompous, prim, proper, punctilious, received, recognized, refined, respectable, right, right and proper, righteous, rightful, rigid, ritual, ritualistic, sacerdotal, seasonable, sedate, seemly, serious, sober, sober-minded, sobersided, solemn, somber, staid, stately, stiff, stone-faced, straight-faced, stuffy, suitable, thoughtful, traditional, unsmiling, urbane, weighty, well-behaved, well-mannered