1.Definition: expected to become or be; in prospect
2.Definition: has a good chance of being the case or of coming about
"These services are likely to be available to us all before long", "She is likely to forget", "A likely place for a restaurant", "The broken limb is likely to fall", "Rain is likely", "A likely topic for investigation", "Likely candidates for the job"
3.Definition: likely but not certain to be or become true or real
"A likely result"
4.Definition: within the realm of credibility
"Not a very likely excuse"