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Definition of underwire

underwire

/ˈʌndərˌwaɪər/
un · der · wire
Plural:underwires
•
Adjective:underwired
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underwire Lexical Profile

underwire Game Scores & Validity

• adjective

1

Having a thin semicircular strip of rigid material sewn into the fabric beneath each cup for structural support (of a brassiere or swimsuit).

Example

"She prefers wearing an underwire swimsuit for extra support while swimming."

Synonyms
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Antonyms
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• noun

1

A thin, semicircular strip of rigid material, typically metal or molded plastic, fitted inside the lower edge of each cup of a brassiere or swimsuit to provide lift and support.

Example

"Washing delicate garments in a mesh bag prevents the underwire from bending in the machine."

2

A brassiere constructed with rigid semicircular supporting strips sewn beneath the cups.

Example

"The lingerie boutique stocks both wireless bralettes and structured underwires."

Synonyms
View all synonyms for underwire
Antonyms
View all antonyms for underwire

• Nearby Words

underwhelm
underwhelming
underwhelmingly
underwire
underwired
underwiring
underwood

Cite this Entry

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