underweight

[uhn-der-weyt, uhn-der-weyt] / ˈʌn dərˈweɪt, ˈʌn dərˌweɪt /

ADJECTIVE

thin

Synonyms

STRONGEST

malnourished starved undernourished

WEAK

angular bony gangly puny scrawny shadow skeleton skin and bones skinny stringbean undersized

Antonyms

WEAK

chubby fat overweight plump thick

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.

Fund managers are underweight bonds by the most since 2022, according to the BofA survey.

From The Wall Street Journal • May 23, 2026

Most of them are underweight and a majority are struggling to breathe on their own.

From BBC • May 18, 2026

We recommend an underweight in consumer staples and consumer discretionary stocks.

From Barron's • Apr. 30, 2026

The largest discrepancy appeared in the underweight group.

From Science Daily • Apr. 3, 2026

Everyone seemed to want her opinion—about their burns, their heart tremors, their underweight infants.

From "Educated" by Tara Westover