Un·com·mon a. Not common; unusual; infrequent; rare; hence, remarkable; strange; as, an uncommon season; an uncommon degree of cold or heat; uncommon courage.
Syn: -- Rare; scarce; infrequent; unwonted.
-- Un*com*mon*ly, adv. -- Un*com*mon*ness, n.
adv : exceptionally; "a common remedy is uncommonly difficult to