keen 1 of 3

adjective

ˈkēn How to pronounce keen (audio)
Definition of keennext
1
as in sensitive
able to sense slight impressions or differences pilots with especially keen eyesight

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2
as in biting
causing intense discomfort to one's skin the keen wind gave me chapped lips

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3
as in sharpened
having an edge thin enough to cut or pierce something lanced the boil with a keen scalpel

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4
as in quick
having or showing quickness of mind readers who were keen enough to realize that the writer was being satirical

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5
as in excellent
of the very best kind that new digital camera sure is keen

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6
as in excited
showing urgent desire or interest a keen hunger for fame and fortune in the fashion industry

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7
as in intense
extreme in degree, power, or effect movies gave him keen enjoyment like nothing else

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keen

2 of 3

noun

as in wail
a crying out in grief the loud keens of the widows were heard throughout the war-ravaged city

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keen

3 of 3

verb

1
as in to complain
to express dissatisfaction, pain, or resentment usually tiresomely victims of the disaster have been keening for weeks about the slowness of governmental aid

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2
as in to howl
to make a long loud mournful sound mourners keening for the victims of the bombing

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Synonym Chooser

How does the adjective keen contrast with its synonyms?

The words acute and sharp are common synonyms of keen. While all three words mean "having or showing alert competence and clear understanding," keen suggests quickness, enthusiasm, and a penetrating mind.

a keen observer of the political scene

In what contexts can acute take the place of keen?

The meanings of acute and keen largely overlap; however, acute implies a power to penetrate and may suggest subtlety and sharpness of discrimination.

an acute sense of style

When would sharp be a good substitute for keen?

While the synonyms sharp and keen are close in meaning, sharp implies quick perception, clever resourcefulness, or sometimes questionable trickiness.

sharp enough to spot a confidence game

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of keen
Adjective
MacDonald and editor Phil Hignett have a keen, witty sense of how the online realm crashes offline living, seamlessly integrating deadly-accurate TikTok parodies into the film’s breezy narrative flow. — Guy Lodge, Variety, 26 Aug. 2026 Royal watchers are keen to see if Harry's return home brings the brothers, who were once extremely close, back together. — Jennifer Hassan, USA Today, 26 Aug. 2026
Noun
The keen-eyed among our readers will notice that the ROG glasses are largely the same inside and out as the Xreal One Pro, which cost $649. — New Atlas, 19 May 2026 The song finds Abstract continuing to explore the contours of indie and alternative rock, with a simmering lo-fi guitar riff that gives way to the uneasy keen of a synth. — Jon Blistein, Rolling Stone, 25 Oct. 2023
Verb
Of course, Plant also used those keening high notes to express an appetite for destruction. — Owen Gleiberman, Variety, 27 Jan. 2025 He’s been lauded for sounding like a vestige of another age — his supple, keening tenor the result of years of apprenticeship to the Pakistani artists Ustad Saami and Farida Khanum. — Emily Lordi Philip Cheung, New York Times, 10 May 2024 See All Example Sentences for keen
Recent Examples of Synonyms for keen
  1. sensitive
  2. biting
  3. sharp
  4. quick
  5. excellent
  6. excited
  7. intense
  8. wail
Adjective
  • Government debt makes up more than 200% of its gross domestic product, leaving its finances highly sensitive to rising borrowing costs.
    — Lee Ying Shan, CNBC, 3 Sep. 2026
  • In addition to pressure, the team demonstrated that the same basic glass platform could also be made sensitive to temperature.
    — Pawel Maniewski, New Atlas, 2 Sep. 2026
Definition of sensitive
Adjective
  • The pacing is more frenetic, the narration more biting, the flashbacks more jarring, and the comedowns much harsher.
    — Hannah Giorgis Yohannes, Vanity Fair, 13 July 2026
  • Described as a biting political thriller in the tradition of Wild in the Streets and V for Vendetta, The Hunted is set in a dystopian America where trans people are brutalized and erased to the margins of society.
    — Glenn Garner, Deadline, 20 June 2026
Definition of biting
Adjective
  • These critters may look cute and cuddly, but their sharp claws are anything but.
    — Michelle Mastro, Martha Stewart, 30 Aug. 2026
  • Domagal-Goldman compared Roman’s capabilities to capturing an all-encompassing view of a forest as well as seeing sharp details of its trees, like leaves and birds, all at the same time.
    — Ashley Strickland, CNN Money, 30 Aug. 2026
Definition of sharp
Adjective
  • Police credited the group's quick response with helping save the woman's life.
    — ABC News, ABC News, 3 Sep. 2026
  • Then the bear tossed a quick glance at Corle and fled into the underbrush.
    — Jan Thacker, Outdoor Life, 3 Sep. 2026
Definition of quick
Adjective
  • Alas, this excellent advice goes into one of Joe’s ears and out the other.
    — Rafaela Bassili, Vulture, 1 Sep. 2026
  • Owls are predators whose eyes are positioned on the front of their heads, giving them excellent depth perception.
    — Abigail Witmer, The Conversation, 31 Aug. 2026
Definition of excellent
Adjective
  • On the opposite sideline, Trimble Tech Head Coach MK Hamilton entered the season with a more experienced roster and was excited about the leadership his veteran players bring.
    — Riley Ledesma, Fort Worth Star-Telegram, 28 Aug. 2026
  • The Atlanta native is excited to carry his dreams and the family name forward.
    — PJ Green August 28, Kansas City Star, 28 Aug. 2026
Definition of excited
Adjective
  • Motion Applied brings experience from motorsport, where power electronics face rapid load changes and intense operating conditions.
    — Aamir Khollam, Interesting Engineering, 2 Sep. 2026
  • As if this weren’t enough for one day, Venus will also make its debut in the secretive and smoldering sign of Scorpio, where the love planet trades light-hearted flirtation for something deeper and way more intense.
    — Valerie Mesa, PEOPLE, 1 Sep. 2026
Definition of intense
Noun
  • The siren let out a deafening wail, and eight jumpers sprinted to nearby racks of gear.
    — M. R. O’Connor, New Yorker, 31 Aug. 2026
  • Perhaps whale songs — wail songs — are never truly lost if they were once truly heard.
    — Caroline Cherston, STAT, 25 Aug. 2026
Definition of wail

Phrases Containing keen

Browse Nearby Words

keels (over)
keen
keened
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Cite this Entry

“Keen.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/keen. Accessed 5 Sep. 2026.

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