underweight

adjective

Definition of underweightnext
as in lightweight
having little weight the long illness left him frail and underweight

Synonyms & Similar Words

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Antonyms & Near Antonyms

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of underweight The assistant medical examiner testified that the child was only 19 pounds, which was considered underweight for her age and height. — Ashley Paul, CBS News, 4 June 2026 Bariatric surgery – a procedure for weight loss – appears to alter set point weight, reducing hunger without decreasing energy expenditure and patients rarely become underweight. — Kim Pfotenhauer, The Conversation, 22 May 2026 Yet, SigRist says the NC pension system remains generally underweight the sector relative to benchmark. — Amanda Gerut, Fortune, 7 Mar. 2026 Looking beyond Taiwan Ken Wong, Asia equity portfolio specialist at Eastspring Investments, is underweight Taiwan, and overweight South Korea. — Michael Considine, CNBC, 16 June 2026 See All Example Sentences for underweight
Recent Examples of Synonyms for underweight
lightweight
Adjective
  • The weather service said people should drink plenty of water, wear lightweight and light-colored clothing and use air conditioning.
    — Jeanine Santucci, USA Today, 4 July 2026
  • Save on lightweight tanks, breezy shorts, easy skirts, and travel-ready tote bags that are ideal for everything from beach days to airport terminals.
    — Nicol Natale, PEOPLE, 3 July 2026
Definition of lightweight

Browse Nearby Words

under weigh
underweight
underwent
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Cite this Entry

“Underweight.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/underweight. Accessed 7 Jul. 2026.

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