The term 'opposite of smooth' can be described by four different words: RASPY (5 letters), RUMPLE (6 letters), AWKWARD (7 letters), and ROUGHEN (7 letters). RASPY is an adjective that describes a sound that is harsh, grating, or hoarse. RUMPLE is an adjective that describes something that is wrinkled or disheveled. AWKWARD is an adjective that describes something that is clumsy or uncomfortable. ROUGHEN is a verb that means to make something rough or uneven. All four words describe the opposite of smooth, which is something that is not even, polished, or graceful.