keenest

Adjective

keen (comparative keener or more keen, superlative keenest or most keen)

1. (Commonwealth) Often with a prepositional phrase, or with to and an infinitive: showing a quick and ardent responsiveness or willingness; eager, enthusiastic, interested.
   • I’m keen on computers.

   Synonyms:

   ardent, eager, prompt, hot on

2. Fierce, intense, vehement.
   • This boy has a keen appetite.
3. Having a fine edge or point; sharp.
   • The tongues of mocking wenches are as keen
     As is the Razors edge, inuisible: […]c. 1595–1596 (date written), William Shakespeare, “Loues Labour’s Lost”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward]...

   Synonyms:

   sharp

4. Acute of mind, having or expressing mental acuteness; penetrating, sharp.
   • For when we rage, aduiſe is often ſeene
     By blunting vs to make our wits more keene.1609, William Shakespeare, “A Louers Complaint”, in Shake-speares Sonnets. […], London: By G[eorge] Eld for T[homas] T[horpe] and are to be sold by William Aspley, →OCLC

   Synonyms:

   acute, penetrating, shrewd, astute, brainy, bright, brilliant, clever, educated, genius

5. Acrimonious, bitter, piercing.
   • keen satire or sarcasm

   Synonyms:

   biting, cutting, piercing

6. (usually, wind) Cutting, penetrating, piercing, sharp.
   • a keen wind

See all 15 meanings of keen