believably

Adverb

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

• in a believable manner
  • he acted believably sincere
    

Related words

• Synonyms: 
  credibly , plausibly , probably
• Antonyms: 
  incredibly , improbably , implausibly , unbelievably