as in lightweight
having little weight
the long illness left him frail and underweight
Synonyms & Similar Words
Relevance
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
His tire management mastery won the 2024 Belgian GP before Russell was ultimately disqualified for his car being underweight.
—
Alex Kalinauckas, New York Times, 20 June 2025
But there were also broader losses in reading and math proficiency, lower preschool enrollment and a higher rate of babies born underweight.
—Laura Tillman, Hartford Courant, 12 June 2025
Found as a stray last August, Gilly was dangerously underweight and had clearly been through a lot.
—Tj MacIas, Kansas City Star, 9 June 2025
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
See All Example Sentences for underweight
Alex Kalinauckas, New York Times, 20 June 2025
But there were also broader losses in reading and math proficiency, lower preschool enrollment and a higher rate of babies born underweight.
—Laura Tillman, Hartford Courant, 12 June 2025
Found as a stray last August, Gilly was dangerously underweight and had clearly been through a lot.
—Tj MacIas, Kansas City Star, 9 June 2025
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
See All Example Sentences for underweight
Recent Examples of Synonyms for underweight
lightweight
Adjective
-
While most of the pieces on this list are lightweight and breathable, be sure to look for this feature when purchasing items.—
Anne Taylor,
Travel + Leisure,
21 July 2025
-
Wear lightweight and breathable clothes; wear a wide-brimmed hat and sunglasses outside.—
Sarah Bence,
Verywell Health,
21 July 2025
Cite this Entry
“Underweight.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/underweight. Accessed 30 Jul. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share