crazy vs unbalanced

crazy is a noun but unbalanced is not a noun.

Word	Noun	Adjective	Verb	Adverb
crazy	Yes	Yes	No	No
unbalanced	No	Yes	No	No

As adjectives, crazy and unbalanced are synonyms defined as:

Other synonyms of crazy include brainsick, demented, disturbed, mad, sick, unhinged.

crazy (noun)	unbalanced (noun)
someone deranged and possibly dangerous

crazy (adjective)	unbalanced (adjective)
intensely enthusiastic about or preoccupied with	being or thrown out of equilibrium
possessed by inordinate excitement	affected with madness or insanity
foolish; totally unsound	debits and credits are not equal
affected with madness or insanity
bizarre or fantastic