A Sharpness

1. (uncountable) the cutting ability of an edge; keenness.
2. (uncountable) the fineness of the point a pointed object.
3. (countable) The product or result of being sharp.
4. (of food etc) pungency or acidity.
5. (of an image) distinctness, focus.
6. (of intelligence) acuteness or acuity.
7. (obsolete) edge or blade

Synonyms

• (cutting ability of an edge): keenness
• (fineness of a point):
• (pungency, acidity): acidity, acridity, piquancy, pungency, sourness
• (of an image): clarity, distinctness, focus
• (of intelligence): acuteness, acuity