slenderness vs slimness

slenderness and slimness both are nouns.

Word	Noun	Adjective	Verb	Adverb
slenderness	Yes	No	No	No
slimness	Yes	No	No	No

As nouns, slenderness and slimness are synonyms defined as:

Other synonyms of slenderness include slightness.

slenderness (noun)	slimness (noun)
the quality of being slight or inadequate	the property of an attractively thin person
the property of an attractively thin person	a small margin
relatively small dimension through an object as opposed to its length or width