unsafe vs desperate

unsafe is not a noun while desperate is a noun.

Word	Noun	Adjective	Verb	Adverb
unsafe	No	Yes	No	No
desperate	Yes	Yes	No	No

unsafe (noun)	desperate (noun)
	a person who is frightened and in need of help

unsafe (adjective)	desperate (adjective)
involving or causing danger or risk; liable to hurt or harm	showing extreme courage; especially of actions courageously undertaken in desperation as a last resort
lacking in security or safety	fraught with extreme danger; nearly hopeless
not safe from attack	arising from or marked by despair or loss of hope
	showing extreme urgency or intensity especially because of great need or desire
	desperately determined
	(of persons) dangerously reckless or violent as from urgency or despair