underweight

1 of 2

noun

un·​der·​weight ˌən-dər-ˈwāt How to pronounce underweight (audio)
: weight below normal, average, or requisite weight

underweight

2 of 2

adjective

: weighing less than the normal or requisite amount

Examples of underweight in a Sentence

Adjective the long illness left him frail and underweight
Recent Examples on the Web
These examples are automatically compiled from online sources to illustrate current usage. Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Adjective
When anovulation is linked to being underweight or exercising vigorously, gaining weight may help. Corey Whelan, Verywell Health, 4 Nov. 2024 Shadow, who is now 12, was underweight, covered with fleas and had seven teeth missing when Minckler adopted him. Cathy Kozlowicz, Journal Sentinel, 30 Oct. 2024 The rally is most inconvenient for foreign investors and strategists who remain on the sidelines/underweight China due to the US election. Brendan Ahern, Forbes, 29 Oct. 2024 But analysts at JPMorgan rated Tesla stock at underweight and set a price target of $135, implying downside of nearly 50%. Jason Ma, Fortune, 27 Oct. 2024 See all Example Sentences for underweight 

Word History

First Known Use

Noun

1596, in the meaning defined above

Adjective

1675, in the meaning defined above

Time Traveler
The first known use of underweight was in 1596

Dictionary Entries Near underweight

Cite this Entry

“Underweight.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/underweight. Accessed 17 Nov. 2024.

Kids Definition

underweight

adjective
un·​der·​weight
ˌən-dər-ˈwāt
: weighing less than what is normal, average, or necessary

Medical Definition

underweight

adjective
un·​der·​weight -ˈwāt How to pronounce underweight (audio)
: weighing less than the normal amount for one's age, height, and build
underweight children
underweight adults typically have a body mass index of less than 18.5
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