Asperity
ASPER'ITY, noun [Latin asperitas, from asper, rough.]
1. Roughness of surface; unevenness; opposed to smoothness.
2. Roughness of sound; that quality which grates the ear; harshness of pronunciation.
3. Roughness to the taste; sourness.
4. Roughness or ruggedness of temper; moroseness; sourness; crabbedness.
5. Sharpness.