'Unexpectedness' definitions:

Definition of 'unexpectedness'

From: WordNet
noun
Extraordinariness by virtue of being unexpected; "the unexpectedness of the warm welcome" [syn: unexpectedness, surprisingness] [ant: expectedness]

Definition of 'Unexpectedness'

From: GCIDE
  • Unexpected \Un`ex*pect"ed\, a. Not expected; coming without warning; sudden. -- {Un`ex*pect"ed*ly}, adv. -- {Un`ex*pect"ed*ness}, n. [1913 Webster]

Synonyms of 'unexpectedness'

From: Moby Thesaurus