Synonyms of decorous in English:

decorous


See definition of decorous

adjective

1‘he always behaved towards her in a decorous way’

SYNONYMS
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
comme il faut
dated mannerly
humorous couth
ANTONYMS

indecorous, unseemly, immodest