keen 1 of 4

Definition of keennext
1
2
3
4
as in quick
having or showing quickness of mind readers who were keen enough to realize that the writer was being satirical

Synonyms & Similar Words

Antonyms & Near Antonyms

5
6
7

keen

2 of 4

noun (1)

keen

3 of 4

verb

keenness

4 of 4

noun (2)

1
2
3
4
as in sensitiveness
the state or quality of being able to sense slight impressions or differences there's an enhanced keenness of hearing that young mothers seem to develop

Synonyms & Similar Words

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
Quantum computing is the next big leap in computing that researchers are keen to develop thanks to its exponentially fast computational speeds. Ameya Paleja, Interesting Engineering, 9 June 2026 In my experience, some Americans with an overly keen interest in English aristocratic traditions seem motivated by disdain for their fellow citizens who are not descended from white Europeans. Helen Lewis, The Atlantic, 9 June 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
The sport's powerhouse India did not want to host another event, with Zimbabwe - emerging as a destination for major tournaments - and Sri Lanka keen but bypassed for the UAE, a reliable alternative that doubles as headquarters for the sport's governing body. Tristan Lavalette, Forbes, 26 Sep. 2024 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
Noun
Housing and homelessness is another key issue in Los Angeles, with voters expressing a keenness for it to be tackled. Tiago Ventura, Time, 9 June 2026 Barcelona and Bayern’s keenness to acquire him underlines both the paucity of the top-level winger market, as well as his own unique characteristics. Pol Ballús, New York Times, 29 May 2026 See All Example Sentences for keen
Recent Examples of Synonyms for keen
Adjective
  • In a chat with Mica, George apologized for not being sensitive to her feelings following the recoupling.
    Armando Tinoco, Deadline, 7 June 2026
  • These burn areas create barriers around villages, headwaters and sensitive sites, protecting them from wildfires during peak drought.
    ABC News, ABC News, 7 June 2026
Adjective
  • Netflix’s big comedy bet might be the Dan Levy–Rachel Sennott co-creation Big Mistakes; the biting, farcical series about adult siblings who get caught up in the drug business plays like Weeds crossed with The Other Two.
    Joe Reid, Vulture, 2 May 2026
  • The tracks are more vulnerable, biting, and self-aware than ever, and in some cases, feature lyrics pulled right out of Hjelt’s diary.
    Charisma Madarang, Rolling Stone, 24 Apr. 2026
Adjective
  • Things take a sharp pivot when Liz and Dolores arrive at the Rhode Island State House.
    Tom Smyth, Vulture, 8 June 2026
  • Ben-Gvir has come under sharp condemnation from other Israeli leaders for making controversial videos, such as his treatment of flotilla activists who were detained after attempting to break the maritime blockade of Gaza.
    Melanie Lidman, Los Angeles Times, 7 June 2026
Adjective
  • After a quick review, it was determined that the clock hit zero before the puck crossed the goal line, restoring a 3-1 lead for Carolina heading into intermission.
    Michael Russo, New York Times, 10 June 2026
  • Tolle recorded two quick outs before a single by Williamson, hit-by-pitch to Fortes, and an RBI single by second baseman Richie Palacios.
    Gabrielle Starr, Boston Herald, 10 June 2026
Adjective
  • Marquinhos — Brazil/PSG The grizzled leader of PSG’s excellent defence occupies a similar role for Brazil, and his partnership with Gabriel will be the foundation for any deep World Cup run.
    Liam Twomey, New York Times, 11 June 2026
  • Watts got another excellent chance in the waning seconds, but the Patriots defense forced the shot to go wide.
    Jack Murray, Boston Herald, 11 June 2026
Adjective
  • Players such as Spurs guard De'Aaron Fox and Knicks forward OG Anunoby don't sound nearly as excited.
    Alejandro Avila, FOXNews.com, 9 June 2026
  • Studiously moderated, but excited, voices amplified news of the actual invasion of Europe read hastily in Orlando Morning Sentinel.
    Orlando Sentinel Staff, The Orlando Sentinel, 8 June 2026
Adjective
  • Thanks to more than 200 years of intense and virtuoso scientific work, what were once valid or at least plausible concerns and objections to vaccines have been overcome.
    Literary Hub, Literary Hub, 11 June 2026
  • Whether Tuchel will, in fact, be able to produce a more intense high-pressing style this summer, given the climate and the dense schedule, is another matter.
    Jack Pitt-Brooke, New York Times, 10 June 2026
Noun
  • Three species of bats inhabit the site, and supernatural events—including the appearance of the gamekeeper’s ghost and the wail of a banshee—have been reported.
    Patricia Doherty, Travel + Leisure, 22 May 2026
  • The wail of fire trucks can be heard as passersby stopped to record the scene.
    Francie Ebert, NBC news, 16 May 2026

Browse Nearby Words

Cite this Entry

“Keen.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/keen. Accessed 14 Jun. 2026.

More from Merriam-Webster on keen

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster