probably

Adverb

• easy to believe on the basis of available evidence
  • he talked plausibly before the committee
    
  • he will probably win the election
    

• with considerable certainty; without much doubt
  • He is probably out of the country
    
  • in all likelihood we are headed for war
    

Related words

• Synonyms: 
  credibly , believably , plausibly , likely , in all likelihood , in all probability , belike
• Antonyms: 
  incredibly , improbably , implausibly , unbelievably