Dictionary
un•con•ven•tion•al
Pronunciation: (un"kun-ven'shu-nl), [key]—
adj.
not conventional; not bound by or conforming to convention, rule, or precedent; free from conventionality:
an unconventional artist; an unconventional use of material. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.