'unbelievably' definitions:
Definition of 'unbelievably'
(from WordNet)
adverb
Not easy to believe; "behind you the coastal hills plunge to the incredibly blue sea backed by the Turkish mountains" [syn: incredibly, improbably, implausibly, unbelievably] [ant: believably, credibly, plausibly, probably]
adverb
In an unbelievable manner; "he was unbelievably angry" [ant: believably]