Longman Dictionary of Contemporary English - unusual

~ adj 1 different from what is usual or ordinary  (The cake has a very unusual flavor. | it is unusual to do sth)  (It is unusual to find diamonds of this size. | it is unusual for sb to do sth)  (Earlier this century, it was unusual for women to have a career.)  (- see rare) 2 interesting or attractive because of being different  (Alan's artwork is very unusual.)