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Definition of unmentionable

unmentionable

/ʌnˈmɛn.ʃən.ə.bəl/
un · men · tion · a · ble

Adverb:unmentionably
•
Plural:unmentionables
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unmentionable Lexical Profile

unmentionable Game Scores & Validity

• adjective

1

So shocking, offensive, or embarrassing that it may not be spoken of.

Example

"The documentary explored several topics that were once considered unmentionable in polite society."

Synonyms
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Antonyms
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• noun

1

Undergarments, especially women's underwear (usually used in the plural).

Example

"She quickly packed her unmentionables into the bottom of the suitcase before closing it."


2

A person or thing that is too offensive, embarrassing, or taboo to be spoken of (usually used in the plural).

Example

"The family gathering proceeded smoothly because everyone agreed to avoid the usual unmentionables at the dinner table."

Synonyms
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Word Nuance & Usage

When used as a noun to mean undergarments, this word is almost exclusively used in its plural form, 'unmentionables', often with a humorous or quaint tone.

• Rhymes for unmentionable

Word Origin & Etymology

Formed in the 17th century from the prefix 'un-', 'mention', and '-able'. The humorous plural noun sense arose in the early 19th century as a Victorian euphemism initially for trousers and later for undergarments.

Cite this Entry


Wordmom. (2026). Definition of Unmentionable. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/unmentionable
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