given vs apt

given is a noun but apt is not a noun.

Word	Noun	Adjective	Verb	Adverb
given	Yes	Yes	No	No
apt	No	Yes	No	No

As adjectives, given and apt are synonyms defined as:

Other synonyms of given include disposed, minded, tending.

given (noun)	apt (noun)
an assumption that is taken for granted

given (adjective)	apt (adjective)
acknowledged as a supposition	being of striking appropriateness and pertinence
(usually followed by `to') naturally disposed toward	(usually followed by `to') naturally disposed toward
	mentally quick and resourceful
	at risk of or subject to experiencing something usually unpleasant