意外之事
Unexpected \Un`ex*pect"ed\, a. Not expected; coming without warning; sudden. -- {Un`ex*pect"ed*ly}, adv. -- {Un`ex*pect"ed*ness}, n.
unexpectedness n : extraordinariness by virtue of being unexpected; "the unexpectedness of the warm welcome" [syn: {surprisingness}] [ant: {expectedness}]