not common; unusual; rare

an uncommon word.

unusual in amount or degree; above the ordinary

an uncommon amount of mail.

exceptional; remarkable.

adjective

common , familiar , normal , regular , usual , bad , imperfect , poor

adjective

aberrant , abnormal , anomalous , arcane , bizarre , curious , eccentric , egregious , exceptional , exotic , extraordinary , extreme , fantastic , few , freakish , infrequent , irregular , nondescript , noteworthy , novel , odd , original , out of the ordinary , out of the way * , outr , peculiar , prodigious , queer , rare , remarkable , scarce , seldom , singular , sporadic , startling , strange , surprising , unaccustomed , unconventional , uncustomary , unfamiliar , unheard of , unique , unorthodox , unusual , weird , distinctive , incomparable , inimitable , notable , outstanding , special , superior , unimaginable , unparalleled , unprecedented , unthinkable , unwonted , occasional , magnificent , preeminent , towering , unwanted , variant , wonderful