1. keen

adjective. (ˈkiːn) Having or demonstrating ability to recognize or draw fine distinctions.
Synonyms
acute sharp incisive penetrating piercing penetrative discriminating perceptive knifelike
Antonyms
unperceptive untidy maladroit unrespectable unfavorable
Etymology
keen (English)
caoin (Irish)
caín (Old Irish (to 900))
caínid (Old Irish (to 900))
kene (Middle English (1100-1500))
cene (Old English (ca. 450-1100))

2. keen-sighted

adjective. Having very keen vision.
Synonyms
hawk-eyed lynx-eyed quick-sighted sharp-eyed sighted argus-eyed sharp-sighted
Antonyms
blind blindfolded sightless red-blind tritanopic

3. keen-eyed

adjective. Having keen eyesight.
Synonyms
eyed sharp-eyed
Antonyms
eyeless blind unperceptive

4. keen-sighted

adjective. Capable of seeing to a great distance.
Synonyms
farsighted farseeing presbyopic longsighted eagle-eyed
Antonyms
nearsighted unperceptive eyeless unalert improvident

5. keen

noun. (ˈkiːn) A funeral lament sung with loud wailing.
Synonyms
coronach lament dirge threnody requiem
Antonyms
worst worse disobedient export import
Etymology
keen (English)
caoin (Irish)
caín (Old Irish (to 900))
caínid (Old Irish (to 900))
kene (Middle English (1100-1500))
cene (Old English (ca. 450-1100))

6. keen

adjective. (ˈkiːn) Painful as if caused by a sharp instrument.
Synonyms
cutting stabbing lancinate sharp piercing lancinating knifelike
Antonyms
dull unfashionable nonpregnant loser unimportant
Etymology
keen (English)
caoin (Irish)
caín (Old Irish (to 900))
caínid (Old Irish (to 900))
kene (Middle English (1100-1500))
cene (Old English (ca. 450-1100))

7. keen

adjective. (ˈkiːn) Intense or sharp.
Synonyms
intense exquisite
Antonyms
mild inelegant diluted
Etymology
keen (English)
caoin (Irish)
caín (Old Irish (to 900))
caínid (Old Irish (to 900))
kene (Middle English (1100-1500))
cene (Old English (ca. 450-1100))

8. keen

adjective. (ˈkiːn) Having a sharp cutting edge or point.
Synonyms
sharp
Antonyms
dull woman
Etymology
keen (English)
caoin (Irish)
caín (Old Irish (to 900))
caínid (Old Irish (to 900))
kene (Middle English (1100-1500))
cene (Old English (ca. 450-1100))

9. keen

adjective. (ˈkiːn) Very good.
Synonyms
dandy groovy smashing great corking neat slap-up cracking good not bad bang-up nifty bully peachy swell
Antonyms
bad little small lowercase ordinary
Etymology
keen (English)
caoin (Irish)
caín (Old Irish (to 900))
caínid (Old Irish (to 900))
kene (Middle English (1100-1500))
cene (Old English (ca. 450-1100))

10. keen

verb. (ˈkiːn) Express grief verbally.
Synonyms
sorrow express feelings grieve express emotion lament
Antonyms
natural object evilness wrong unrighteous wicked
Etymology
keen (English)
caoin (Irish)
caín (Old Irish (to 900))
caínid (Old Irish (to 900))
kene (Middle English (1100-1500))
cene (Old English (ca. 450-1100))
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