Indicates that the action may successfully be performed (is not impossible) regardless of any facts or circumstances known to, stated by or implied by the speaker that might limit the performance
I couldn't possibly cheat on my wife.
Indicates that the proposition may be true (is not certainly false) regardless of any facts or circumstances known to, stated by or implied by the speaker
This rare and possibly unique specimen must be conserved.
capable of being true without contradicting proven facts, laws, or circumstances
vagueness You use possibly to indicate that you are not sure whether something is true or might happen. Exercise will not only lower blood pressure but possibly protect against heart attacks They were smartly but casually dressed; possibly students Do you think that he could possibly be right?
emphasis You use possibly to emphasize that you are surprised, puzzled, or shocked by something that you have seen or heard. It was the most unexpected piece of news one could possibly imagine
emphasis You use possibly to emphasize that someone has tried their hardest to do something, or has done it as well as they can. They've done everything they can possibly think of
In a possible manner; by possible means; especially, by extreme, remote, or improbable intervention, change, or exercise of power; by a chance; perhaps; as, possibly he may recover
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"
with a possibility of becoming actual; "introducing possibly dangerous innovations"; "he is potentially dangerous"; "potentially useful"
to a degree possible of achievement or by possible means; "they can't possibly get here in time for the funeral?"