Being the only one of a kind; unique.
Being beyond what is ordinary or usual; remarkable.
Deviating from the usual or expected; odd. See Synonyms at strange.
Grammar Of, relating to, or being a verb expressing the action or state of a single subject.
Logic Of or relating to the specific as distinguished from the general; individual.
Grammar The singular number or a form designating it.
Grammar A word having a singular number.