keenness

Plural: keennesses

Noun

• The quality of being sharp, perceptive, eager, or intense.
• a quick and penetrating intelligence
  • "I admired the keenness of his mind"
• a positive feeling of wanting to push ahead with something
• thinness of edge or fineness of point
• sharpness or cutting ability
• astuteness or sagacity
• eagerness or enthusiasm

Examples

• His KEENNESS for finding obscure words was both his greatest asset and his downfall.

Synonyms

acuity, acuteness, avidity, avidness, eagerness, sharpness

Antonyms

dullness