Definition of "Likely" :

adjective: within the realm of credibility

"Not a very likely excuse."

adjective: has a good chance of being the case or of coming about

"These services are likely to be available to us all before long."

adjective: likely but not certain to be or become true or real

"A likely result."

adjective: expected to become or be; in prospect

adverb: with considerable certainty; without much doubt