as in lightweight
having little weight
the long illness left him frail and underweight
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Recent Examples of underweight
Strays may appear underweight, often roam alone, and tend to hang around homes.
—
Maria Azzurra Volpe, MSNBC Newsweek, 10 Nov. 2025
Normally, that would point to Type 1 diabetes, where individuals are unable to make their own insulin and can become underweight.
—Jonathan Lambert, NPR, 29 Sep. 2025
Obesity can disrupt the body's metabolism, weaken the immune system and lead to diseases like Type 2 diabetes, cardiovascular diseases and up to 15 different cancers, while being underweight is tied to malnutrition, weakened immunity and nutrient deficiencies, Gribsholt warned.
—Deirdre Bardolf, FOXNews.com, 20 Sep. 2025
This rally has likely been unwelcome for managers who remain underweight in Chinese stocks.
—Brendan Ahern, Forbes.com, 16 Sep. 2025
See All Example Sentences for underweight
Maria Azzurra Volpe, MSNBC Newsweek, 10 Nov. 2025
Normally, that would point to Type 1 diabetes, where individuals are unable to make their own insulin and can become underweight.
—Jonathan Lambert, NPR, 29 Sep. 2025
Obesity can disrupt the body's metabolism, weaken the immune system and lead to diseases like Type 2 diabetes, cardiovascular diseases and up to 15 different cancers, while being underweight is tied to malnutrition, weakened immunity and nutrient deficiencies, Gribsholt warned.
—Deirdre Bardolf, FOXNews.com, 20 Sep. 2025
This rally has likely been unwelcome for managers who remain underweight in Chinese stocks.
—Brendan Ahern, Forbes.com, 16 Sep. 2025
See All Example Sentences for underweight
Recent Examples of Synonyms for underweight
lightweight
Adjective
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Leading up to that signing, Gaethje had won the World Series of Fighting lightweight title and then defended the belt five times.—
Trent Reinsmith,
Forbes.com,
22 Jan. 2026
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Second to going commando, these 20 lightweight, nearly invisible styles won’t let a panty line ruin your workout class (or your tailor’s hard work).—
Abby Morgan Lebet,
InStyle,
22 Jan. 2026
Cite this Entry
“Underweight.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/underweight. Accessed 29 Jan. 2026.
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