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

Simmons came out sporting an orange undershirt beneath his white Bears jersey, carrying on a tradition of wearing bright colors so his daughter can spot him on TV. — Sean Hammond, Chicago Tribune, 3 Nov. 2026

Layer an undershirt under sweaters and jackets to absorb sweat and body oils. — Ryan Brennan, Sacbee.com, 17 Sep. 2026

Wear an undershirt beneath sweaters, button-downs or jackets to reduce contact with sweat and body oils. — Ryan Brennan, Fort Worth Star-Telegram, 17 Sep. 2026

Clips circulated online of the tennis champ checking his chest to make sure his top was in the right place, and reporters asked him about his decision to start wearing more modest undershirts. — José Criales-Unzueta, Vanity Fair, 9 Sep. 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