sharpness

/ˈʃɑrpnəs/
noun
  1. The quality of having a thin edge or fine point that can cut or pierce easily.
    • Be careful with that razor—its sharpness can cause a deep cut.
    • The sharpness of the knife made slicing vegetables effortless.
    • He tested the sharpness of the blade on a piece of paper.
  2. The quality of being clear and distinct, especially in an image or sound.
    • The new camera lens improves the sharpness of photos.
    • The sharpness of the audio recording made every word easy to understand.
    • I adjusted the TV settings to increase the sharpness of the picture.
  3. The quality of being quick to understand, think, or react.
    • Age has not reduced his sharpness in solving complex problems.
    • The detective's sharpness helped him notice the small clue.
    • Her mental sharpness amazed everyone at the chess tournament.
  4. The quality of being harsh, severe, or critical in tone or manner.
    • The sharpness of her reply surprised her friends.
    • There was a sharpness in his voice that showed his anger.
    • The critic's review had a sharpness that offended the author.