sharpness
sharp-ness
noun
The quality of having a keen edge, a fine point, or clear focus.
"The knife's sharpness made cutting effortless."
Thesaurus
Synonyms: edge, bite, pungency, raciness, keenness, distinctness, acuteness, acuity, asperity
Antonyms: bluntness, blurriness, dullness, fogginess, fuzziness, indistinctness, softness