undershirt

noun

un·​der·​shirt ˈən-dər-ˌshərt 

: a collarless undergarment with or without sleeves

undershirted

ˈən-dər-ˌshər-təd 

adjective

Examples of undershirt in a Sentence

Recent Examples on the Web

The icing on the cake of this whole thing is the quarter-zip with no undershirt. — Zach Dean Outkick, FOXNews.com, 10 Aug. 2026

The beauty of this shirt, per shoppers, is that it can be worn on its own or as an undershirt, depending on the season. — Better Homes & Gardens, 18 July 2026

Polos sat beneath lightweight jackets, scarves were casually draped across shoulders, sweaters were tied around the neck, and undershirts subtly framed open collars. — Tiana Randall, Forbes.com, 29 June 2026

These tops are classic, can be worn as undershirts or on their own, and come out to just $8 apiece. — Annie Blackman, InStyle, 22 June 2026

Word History

First Known Use

1648, in the meaning defined above

Rhymes for undershirt

• controvert
• disconcert
• extrovert
• introvert
• reassert
• alert
• assert
• avert
• dessert
• divert
• evert
• exert

Kids Definition

undershirt

noun

un·​der·​shirt ˈən-dər-ˌshərt 

: a collarless undergarment for the upper body