Find Antonyms

thinness Antonyms

Opposite of thinness

Because the opposite of thinness shifts with each meaning, the 12 antonyms and opposite words below are separated across 3 exact definitions and ranked by contrast strength.
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• noun (Context 1)

The state or quality of having a small distance between opposite surfaces, or of having a narrow cross-section.

Usage Example

"The extreme thickness of the ice made it dangerous to walk across the frozen pond."

Strongest
thickness
Strong
width
broadness

• noun (Context 2)

The condition of having little bodily flesh or fat; physical slenderness or leanness.

Usage Example

"Her sudden fatness worried her doctor, who recommended a nutritional evaluation."

Strongest
fatness
plumpness
Strong
corpulence
obesity
stoutness

• noun (Context 3)

The quality of lacking density, viscosity, fullness, or substance (as of a liquid, gas, sound, or argument).

Usage Example

"Climbers at high altitudes must acclimate to the density of the mountain air."

Strongest
density
thickness
Strong
richness
fullness
viscosity

Similar words to thinness

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

slenderness
leanness
skinniness
slimness
fineness
sparseness
sparsity
wateriness
See all synonyms of thinness

• Nearby Words

thinking
thinly
thinner
thinness
thinning
thinnish
third

Cite this Entry

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