lean vs skimpy

lean is a noun but skimpy is not a noun.

Word	Noun	Adjective	Verb	Adverb
lean	Yes	Yes	Yes	No
skimpy	No	Yes	No	No

As adjectives, lean and skimpy are synonyms defined as:

lean (noun)	skimpy (noun)
the property possessed by a line or surface that departs from the vertical

lean (adjective)	skimpy (adjective)
lacking in mineral content or combustible material	containing little excess
lacking excess flesh	(of clothing) revealing the body
not profitable or prosperous
containing little excess

lean (verb)	skimpy (verb)
rely on for support
cause to lean or incline
to incline or bend from a vertical position
cause to lean to the side
have a tendency or disposition to do or be something; be inclined