Acute, assiduous, and anxious are another word for keen. Reluctant and apathetic are the opposites of keen. On this page, find 87 synonyms for keen, parts of speech, and examples of keen sentences.
Keen synonyms
Keen means having a strong or enthusiastic interest, eager or sharp in perception, intellectually sharp, or showing enthusiasm and readiness.
Acute
Ambitious
Anxious
Ardent
Assiduous
Astute
Attached to
Attracted to
Avid
Brainy
Bright
Brilliant
Canny
Clever
Committed
Conscientious
Crazy about
Dedicated
Desirous
Determined
Devoted to
Diligent
Discerning
Driven
Dying
Eager for
Eager
Earnest
Enamoured of
Enthusiastic about
Enthusiastic
Fascinated by
Fervent
Fervid
Finely honed
Fond of
Genius
Gone on
Hungry for
Impassioned
Impatient
Incisive
Industrious
Infatuated with
Insightful
Intelligent
Intent on
Intent
Interested in
Into
Itching
Longing
Mad about
Nuts about
Passionate about
Passionate
Penetrating
Perceptive
Percipient
Perspicacious
Piercing
Quick-witted
Rapier-like
Raring
Razor-like
Razor-sharp
Ready
Sagacious
Sapient
Sharp-witted
Sharp
Shrewd
Smart
Smitten with
Struck on
Subtle
Sweet on
Taken with
Wholehearted
Willing
Wise
Wishing
Yearning
Zealous
Zestful
Twitterpated by
Keen sentences
She has a keen interest in astronomy.
His keen sense of smell detected trouble.
The detective's keen observation skills solved mysteries.