impossible vs possible

impossible and possible both are nouns.

Word	Noun	Adjective	Verb	Adverb
impossible	Yes	Yes	No	No
possible	Yes	Yes	No	No

impossible (noun)	possible (noun)
something that cannot be done	something that can be done
	an applicant who might be suitable

impossible (adjective)	possible (adjective)
not capable of occurring or being accomplished or dealt with	capable of happening or existing
(used of persons or their behavior) not acceptable or reasonable	existing in possibility
totally unlikely