likely

Từ điển American Heritage Dictionary 4th

like·ly (līkʹlē)adj. like·li·er, like·li·est
1. Possessing or displaying the qualities or characteristics that make something probable:
They are likely to become angry with him.
2. Within the realm of credibility; plausible:
not a very likely excuse.
3. Apparently appropriate or suitable:
There were several likely candidates for the job.
4. Apt to achieve success or yield a desired outcome; promising:
a likely topic for investigation.
5. Attractive; pleasant:
found a likely spot under a shady tree for the picnic.adv. Usage Problem
Probably. [Middle English likly, from Old English gelīclīc(from gelīc, similar), and from Old Norse līkligr(from līkr, similar); See līk- in Indo-European Roots.] 
Usage Note: Used as an adverb likely is most commonly preceded by a modifier such as very or quite: He will quite likely require some help with his classes. But the unmodified use of likely is common enough in educated writing, and though it might be better avoided in highly formal style, it should not be regarded as incorrect: They'll likely buy a new car this year. See Usage Note at liable.

• Từ đồng nghĩa / Synonyms:
  potential, probable, probably, in all likelihood, in all probability, belike
• Từ trái nghĩa / Antonyms:
  improbable, unlikely