noun

slimness

thinness, slenderness

The slimness of the phone makes it easy to hold.

The thinness of the phone makes it easy to hold.

She maintained her slimness through diet and exercise.

She maintained her slenderness through diet and exercise.

((noun)) as a subject or object. The slimness of the new phone is impressive.

Synonyms: thinness, slenderness; Antonyms: bulkiness, thickness

From the adjective 'slim' plus the suffix '-ness', which forms nouns indicating a state or quality.

The suffix '-ness' turns an adjective into a noun describing the quality. So, 'slimness' is the quality of being slim.

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