apt vs apropos

apt and apropos both are adjectives.

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

apt (adjective)	apropos (adjective)
being of striking appropriateness and pertinence	of an appropriate or pertinent nature
(usually followed by `to') naturally disposed toward
mentally quick and resourceful
at risk of or subject to experiencing something usually unpleasant

apt (adverb)	apropos (adverb)
	at an opportune time
	introducing a different topic