harshness

(noun) the roughness of a substance that causes abrasions. Synonyms: abrasiveness, scratchiness.

(noun) the quality of being unpleasant (harsh or rough or grating) to the senses. Synonyms: roughness.

(noun) the quality of being cruel and causing tension or annoyance. Synonyms: cruelty, cruelness.

(noun) excessive sternness. Synonyms: severity, severeness, rigor, rigour, rigorousness, rigourousness, inclemency, hardness, stiffness. Examples: "Severity of character." "The harshness of his punishment was inhuman." "The rigors of boot camp."