- Rigour - Sharpness and intensity of tone - sharpness of tone - Roughness of surface; unevenness; -- opposed to
smoothness. - Roughness or harshness of sound; that quality which
grates upon the ear; raucity. - Roughness to the taste; sourness; tartness. - Moral roughness; roughness of manner; severity;
crabbedness; harshness; -- opposed to mildness.