1. Having a fine, sharp cutting edge or point.
2. Having or marked by intellectual quickness and acuity.
3. Acutely sensitive like example: a keen ear
4. Sharp, vivid or strong
5. Intense/piercing like example: a keen wind.
6. Pungent/acrid like example: A keen smell of skunk was left behind.
The abstract noun form for the adjective keen is keenness.
blunt, pointless
edged, razor-sharp
The word 'keen' is a noun, a word for a dirge or a lament for the dead. Another noun form is 'keener', one who wails for the deadThe noun form for the adjective keen is keenness.
"Keen" is and adjective, used to describe something as sharp or acute. "The sword had a keen edge." "He was a man of keen intellect." It can also be used to express enthusiasm. "He was keen to learn another language."
"Keen" is and adjective, used to describe something as sharp or acute. "The sword had a keen edge." "He was a man of keen intellect." It can also be used to express enthusiasm. "He was keen to learn another language."
The word meaning "with constant frequency" is an adjective. The word meaning "a frequent customer" is a noun.
Exceptionally is the adverb modifying the adjective keen.
keen
The word immediate, meaning "at that given moment", is an adjective.
The word serious, meaning "important" is an adjective.
The word fancy, meaning "decorative", is an adjective.