decorum

noun

de·​co·​rum di-ˈkȯr-əm 

1

: literary and dramatic propriety : fitness

According to strict neoclassic decorum only the aristocracy had the right to appear in tragedy …

—Irving Babbitt

2

: propriety and good taste in conduct or appearance

… strict in her notions of decorum …

—Jane Austen

3

: orderliness

… the organization's decorum has rarely been shaken.

—W. F. Longgood

4

decorums plural : the conventions of polite behavior

… the established sobrieties and decorums of English life.

—H. G. Wells

Synonyms of decorum

• etiquette
• decency
• propriety

Examples of decorum in a Sentence

He has no sense of decorum.

high standards of decorum are usually required when attending the opera

Recent Examples on the Web

In more recent times, civil-military frictions have consisted almost entirely of civilian leaders pushing the military up to or over the bounds of traditional decorum or even the law. —Kori Schake, The Atlantic, 22 Mar. 2026

Women’s sports is no different, and placing expectations for greater decorum on it is a way of holding back the game’s growth. —Emma Hinchliffe, Fortune, 19 Mar. 2026

Clothing turned into a placard violated the rule and the decorum of the chamber. —Kevin Rennie, Hartford Courant, 14 Mar. 2026

The Chinese researchers remained tactfully silent on the military front — perhaps choosing scientific decorum over a discussion of battlefield utility. —Mrigakshi Dixit, Interesting Engineering, 4 Mar. 2026

Word History

Etymology

Latin, from neuter of decorus — see decorous

First Known Use

1568, in the meaning defined at sense 1

Rhymes for decorum

• picloram
• pullorum
• aurum
• foram
• forum
• quorum
• digitorum
• neonatorum

Kids Definition

decorum

noun

de·​co·​rum di-ˈkōr-əm 

-ˈkȯr-

1

: agreement with accepted standards of conduct : proper behavior

social decorum

2

: the state or condition of being calm, orderly, and well-regulated

the decorum of the meeting