POSSIBLY
possibly, perchance, perhaps, maybe, mayhap, peradventure
(adverb) 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”
possibly
(adverb) to a degree possible of achievement or by possible means; “they can’t possibly get here in time for the funeral?”
Source: WordNet® 3.1
Etymology
Adverb
possibly (comparative more possibly, superlative most possibly)
(modifying a clause or predicate) Perhaps; 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.
(modifying a verb) In the realm of possibility; 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.
Synonyms
• conceivably, maybe, perhaps, potentially
Antonyms
• impossibly
• inevitably
• certainly
Source: Wiktionary
Pos"si*bly, adv.
Definition: 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.
Can we . . . possibly his love desert Milton.
When possibly I can, I will return. Shak.
POSSIBLE
Pos"si*ble, a. Etym: [F., fr. L. possibilis, fr. posse to be able, to
have power; potis able, capable + esse to be. See Potent, Am, and cf.
Host a landlord.]
Definition: Capable of existing or occurring, or of being conceived or
thought of; able to happen; capable of being done; not contrary to
the nature of things; -- sometimes used to express extreme
improbability; barely able to be, or to come to pass; as, possibly he
is honest, as it is possible that Judas meant no wrong.
With God all things are possible. Matt. xix. 26.
Syn.
– Practicable; likely. See Practicable.
Source: Webster’s Unabridged Dictionary 1913 Edition