Find Antonyms

thinner Antonyms

Opposite of thinner

Because the opposite of thinner shifts with each meaning, the 9 antonyms and opposite words below are separated across 4 exact definitions and ranked by contrast strength.
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• adjective (Context 1)

Having a smaller distance between opposite surfaces or sides than something else; less thick.

Usage Example

"The baker rolled the pastry dough into a thicker sheet before placing it in the pan."

Strongest
thicker
Strong
wider
broader

• adjective (Context 2)

Having less bodily fat or flesh; leaner or more slender in build.

Usage Example

"He looked noticeably fatter after completing six months of marathon training."

Strongest
fatter
heavier
Strong
plumper
stouter

• adjective (Context 3)

Less dense, concentrated, or viscous (especially of a liquid, gas, or crowd).

Usage Example

"Climbers often struggle to breathe at high altitudes where the mountain air becomes much denser."

Strongest
denser
thicker

• noun (Context 4)

A volatile liquid solvent, such as turpentine or acetone, added to paint, varnish, or lacquer to reduce its viscosity and make it easier to apply or clean up.

Usage Example

"The artist used a small amount of paint thickener to clean the dried oil pigments from her brushes."

Strongest
thickener

Similar words to thinner

Words similar to thinner shift depending on context. Common synonyms include:

slimmer
leaner
diluent
skinnier
solvent
slenderer
sparser
slighter
See all synonyms of thinner

Cite this Entry


Wordmom. (2026). Antonyms for Thinner. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/thinner
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