unmentionable

1 of 2

adjective

un·​men·​tion·​able ˌən-ˈmen(t)-sh(ə-)nə-bəl 

: not fit or allowed to be mentioned or discussed : unspeakable

an unmentionable topic

unmentionable

2 of 2

noun

: one that is not to be mentioned or discussed: such as

a

unmentionables ˌən-ˈmen(t)-sh(ə-)nə-bəlz  plural : pants sense 1

b

unmentionables plural : underwear

Synonyms of unmentionable

Noun

• underwear

Examples of unmentionable in a Sentence

Adjective

There are certain topics that are considered to be unmentionable.

Noun

he was standing there in the cold, clad only in his unmentionables

Recent Examples on the Web

Adjective

The concept of a Chinese luxury brand—or even one that fluttered on the verge of high-end—was unmentionable. — Gemma A. Williams, Forbes, 18 Dec. 2024

Even at unmentionable speeds, reining in two supercars, the E60 felt rock-steady and sturdy. — Sean Evans, Robb Report, 30 Oct. 2024

Noun

Embracing these unmentionables as a part of our daily wardrobe is a skill worth mastering. — Devine Blacksher, Essence, 9 Jan. 2024

Dirt, dust, pet hair, and more unmentionables that end up on your floors are no match for the best cordless vacuums on Amazon. — Blake Bakkila, Architectural Digest, 12 June 2026

Word History

First Known Use

Adjective

1657, in the meaning defined above

Noun

1791, in the meaning defined above

Rhymes for unmentionable

• pensionable

Kids Definition

unmentionable

adjective

un·​men·​tion·​able

ˌən-ˈmench-(ə-)nə-bəl, 

ˈən-

: not fit or proper to be talked about