skinny vs scrawny

skinny is a noun but scrawny is not a noun.

Word	Noun	Adjective	Verb	Adverb
skinny	Yes	Yes	No	No
scrawny	No	Yes	No	No

As adjectives, skinny and scrawny are synonyms defined as:

Other synonyms of skinny include boney, bony, scraggly, scraggy, underweight, weedy.

skinny (noun)	scrawny (noun)
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skinny (adjective)	scrawny (adjective)
of or relating to or resembling skin	inferior in size or quality
giving or spending with reluctance	being very thin
being very thin
fitting snugly