possibly

Adverb

• to a degree possible of achievement or by possible means
  • they can't possibly get here in time for the funeral?
    

• by chance
  • perhaps she will call tomorrow
    
  • we may possibly run into them at the concert
    
  • it may peradventure be thought that there never was such a time
    

Related words

• Synonyms: 
  perchance , perhaps , maybe , mayhap , peradventure