noun
1.
socially acceptable behavior or accepted standards of this
they found his conduct quite lacking in decorum
Synonyms: decency, dignity, etiquette, propriety, seemliness
Related Word: convenance, convention, form, usage
Contrasted words: laxity, laxness, license, slackness; carelessness, heedlessness, inconsiderateness, mannerlessness; inappropriateness, incorrectness
Antonyms: indecorum
2.
Synonyms: order 7, correctitude, correctness, decorousness, orderliness, properness, propriety, seemliness
Related Word: ceremoniousness, conventionality, formality, solemnity; convenance, convention, form, usage
Contrasted words: inappropriateness, incorrectness; unfitness, unsuitability, unsuitableness; disorder, misbehavior, misconduct, misdeed, misdemeanor
Antonyms: indecorum; license
3.
usually decorums plural
Synonyms: manner 3, amenities, civilities, etiquette, mores, proprieties