likely vs apt

likely and apt both are adjectives.

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

likely (adjective)	apt (adjective)
has a good chance of being the case or of coming about	being of striking appropriateness and pertinence
within the realm of credibility	(usually followed by `to') naturally disposed toward
expected to become or be; in prospect	mentally quick and resourceful
	at risk of or subject to experiencing something usually unpleasant

likely (adverb)	apt (adverb)
with considerable certainty; without much doubt