Englishdecorous
adjective
he always behaved toward her in a decorous way:
proper, seemly, decent, becoming, befitting, tasteful, in good taste;
tactful, correct, appropriate, suitable, fitting, fit;
polite, well mannered, well behaved, genteel, refined, polished, well bred, dignified, respectable, courtly, civilized;
formal, reserved, modest, demure, sedate, staid, gentlemanly, ladylike;
French comme il faut;
dated mannerly;
humorous couth.
▷antonyms indecorous; unseemly; immodest.