Find Synonyms

underweight Synonyms

Another word for underweight

Choosing another word for underweight depends on context, so the 11 synonyms and similar words below are separated across 3 exact definitions and ranked by match strength.
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• adjective (Context 1)

Weighing less than is normal, healthy, or required for a person or animal of a given age and height.

Usage Example

"The veterinarian noted that the rescued puppy was severely skinny and needed a specialized diet."

Strong
skinny
thin
scrawny
emaciated
gaunt
undernourished

• adjective (Context 2)

Having less than the required, standard, or permissible weight (especially of goods, coins, or baggage).

Usage Example

"Inspectors fined the bakery for selling loaves of bread that were consistently light."

Strong
light
lightweight

• noun (Context 3)

A condition of weighing less than is normal, healthy, or required; an insufficiency in weight.

Usage Example

"Public health programs in the region aim to reduce childhood thinness through improved maternal nutrition."

Strong
thinness
leanness
emaciation

Opposites of underweight

The opposite of underweight shifts depending on context. Common opposites include:

overweight
obesity
obese
corpulence
plump
heavy
corpulent
See all opposites of underweight

• Nearby Words

underwater
underway
underwear
underweight
underwhelm
underwhelming
underwhelmingly

Cite this Entry

Wordmom. (2026). Synonyms for Underweight. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/underweight
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