Dictionary.com
Thesaurus.com

sweatpants

American  
[swet-pants] / ˈswɛtˌpænts /
Or sweat pants

noun

(used with a plural verb)
  1. loose-fitting pants pant pants of soft, absorbent fabric, as cotton jersey, usually with a drawstring at the waist and close-fitting or elastic cuffs at the ankles, commonly worn during athletic activity for warmth or to induce sweating.


Etymology

Origin of sweatpants

First recorded in 1920–25; sweat + pants

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Not to mention that she’s wearing sweatpants that have seen too many wears, and a way-too-big T-shirt that says “I need vitamin sea” that I’m pretty sure is her dad’s.

From Literature

I recently spent a weekend doing deep investigative research into future technologies: I binged “The Jetsons” in my sweatpants.

From The Wall Street Journal

Epstein, in a schlumpy gray sweatshirt and sweatpants, radiated energy as he alone stood at the staircase, surveying the room.

From The Wall Street Journal

Upstairs, I lend him a pair of sweatpants that Celia borrowed from Liam months ago, plus my Math Counts shirt since he wears the same one.

From Literature

Clyde: Hayley loves funny fits I wear, maybe baggy sweatpants and a funny beanie.

From Los Angeles Times