Synonyms for possibly

Adverb

1. possibly, perchance, perhaps, maybe, mayhap, peradventure

usage: 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"

2. possibly, potentially,potential (vs. actual), possible

usage: with a possibility of becoming actual; "introducing possibly dangerous innovations"; "he is potentially dangerous"; "potentially useful"

3. possibly,conceivable, imaginable, possible

usage: in a manner or to a degree possible of conceiving; "is it possibly true?"

4. possibly,possible (vs. impossible)

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