'Unusual' definitions:

Definition of 'unusual'

From: WordNet
adjective
Not usual or common or ordinary; "a scene of unusual beauty"; "a man of unusual ability"; "cruel and unusual punishment"; "an unusual meteorite" [ant: usual]
adjective
Being definitely out of the ordinary and unexpected; slightly odd or even a bit weird; "a strange exaltation that was indefinable"; "a strange fantastical mind"; "what a strange sense of humor she has" [syn: strange, unusual] [ant: familiar]
adjective
Not commonly encountered; "two-career families are no longer unusual"

Definition of 'Unusual'

From: GCIDE
  • 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]