Keen

Definition:

(superl.) Sharp; having a fine edge or point; as, a keen razor, or a razor with a keen edge.
(superl.) Acute of mind; sharp; penetrating; having or expressing mental acuteness; as, a man of keen understanding; a keen look; keen features.
(superl.) Bitter; piercing; acrimonious; cutting; stinging; severe; as, keen satire or sarcasm.
(superl.) Piercing; penetrating; cutting; sharp; -- applied to cold, wind, etc, ; as, a keen wind; the cold is very keen.
(superl.) Eager; vehement; fierce; as, a keen appetite.
(v. t.) To sharpen; to make cold.
(n.) A prolonged wail for a deceased person. Cf. Coranach.
(v. i.) To wail as a keener does.

Compare keen with other words:

keen vs. passionate

keen vs. promptly

keen vs. sensitive

earnest vs. keen

genius vs. keen

keen vs. smitten

clever vs. keen

keen vs. willing

intent vs. keen

anxious vs. keen

desire vs. keen

acumen vs. keen

keen vs. perspicacity

adjective vs. keen

astute vs. keen

keen vs. rapier

ingenious vs. keen

keen vs. poignant

discerning vs. keen

keen vs. sagacious

keen vs. mordant

acuminous vs. keen

acuminate vs. keen

keen vs. perspicacious

enthusiasm vs. keen

keen vs. keener

keen vs. keenness

keen vs. shrewd

keen vs. keenly

keen vs. satirical

keen vs. severe

keen vs. sarcastic

biting vs. keen

cutting vs. keen

keen vs. prompt

audacious vs. keen

courageous vs. keen

acrimonious vs. keen

competitive vs. keen

bitter vs. keen

keen vs. piercing

keen vs. penetrating

fierce vs. keen

keen vs. vehement

intense vs. keen

interested vs. keen

enthusiastic vs. keen

ardent vs. keen

connotation vs. keen