as in lightweight
having little weight
the long illness left him frail and underweight
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Recent Examples of underweight
The Denver Animal Shelter is seeing a troubling rise in animal neglect cases, with a growing number of pets arriving dangerously underweight and weak.
—
Jessica Alvarado Gamez, Denver Post, 5 June 2025
Bumble — The dating app's stock lost 6% on the back of JPMorgan's downgrade to underweight from neutral.
—Lisa Kailai Han, CNBC, 3 June 2025
Only around 6% of people with these conditions are actually medically underweight, Dr. Marshall says.
—Amy Norton, SELF, 27 May 2025
When the bear cub arrived to Gold Country Wildlife Rescue in December 2024, he was dehydrated, anemic, severely underweight, suffering from ear infections in both ears and a skin infection, as previously reported by USA TODAY.
—Greta Cross, USA Today, 10 June 2025
See All Example Sentences for underweight
Jessica Alvarado Gamez, Denver Post, 5 June 2025
Bumble — The dating app's stock lost 6% on the back of JPMorgan's downgrade to underweight from neutral.
—Lisa Kailai Han, CNBC, 3 June 2025
Only around 6% of people with these conditions are actually medically underweight, Dr. Marshall says.
—Amy Norton, SELF, 27 May 2025
When the bear cub arrived to Gold Country Wildlife Rescue in December 2024, he was dehydrated, anemic, severely underweight, suffering from ear infections in both ears and a skin infection, as previously reported by USA TODAY.
—Greta Cross, USA Today, 10 June 2025
See All Example Sentences for underweight
Recent Examples of Synonyms for underweight
lightweight
Adjective
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Made with a stretchy elastic waist and an ultra-soft, lightweight fabric, these pants certainly don’t skimp on comfort.—
Melony Forcier,
Travel + Leisure,
27 June 2025
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At 87 percent merino wool (blended with nylon), these are also very durable while remaining lightweight (10.3 oz for a men's large).—
Scott Gilbertson,
Wired News,
27 June 2025
Cite this Entry
“Underweight.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/underweight. Accessed 9 Jul. 2025.
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