Search Result for "unusualness": 
Wordnet 3.0

NOUN (1)

1. uncommonness by virtue of being unusual; 



The Collaborative International Dictionary of English v.0.48:

Unusual \Un*u"su*al\, a.
   Not usual; uncommon; rare; as, an unusual season; a person of
   unusual grace or erudition. -- Un*u"su*al*ly, adv. --
   Un*u"su*al*ness, n.
   [1913 Webster]


WordNet (r) 3.0 (2006):

unusualness
    n 1: uncommonness by virtue of being unusual [ant: usualness]