WordReference Random House Learner's Dictionary of American English © 2026
dec•o•rous /ˈdɛkərəs/USA pronunciation
adj.
WordReference Random House Unabridged Dictionary of American English © 2026- showing respect for social customs and manners;
proper and suitable:decorous behavior during the solemn occasion.
dec•o•rous
(dek′ər əs, di kôr′əs, -kōr′-),USA pronunciation adj.
dec′o•rous•ly, adv.
dec′o•rous•ness, n.
- characterized by dignified propriety in conduct, manners, appearance, character, etc.
- Latin decōrus seemly, becoming, derivative of decus; see decorate, -ous
- 1655–65
dec′o•rous•ness, n.
- proper, becoming.
- undignified.
'decorously' also found in these entries (note: many are not synonyms or translations):