Antonym of SMOOTH

Answer: Option D

Smooth : having an even and regular surface; free from perceptible projections, lumps, or indentations.
Ugly : unpleasant or repulsive, especially in appearance.
Awkward : causing difficulty; hard to do or deal with.
Hard : solid, firm, and rigid; not easily broken, bent, or pierced.
Rough : having an uneven or irregular surface; not smooth or level.

Antonym of Smooth is Rough