• WordNet 3.6
    • adj lukewarm feeling or showing little interest or enthusiasm "a halfhearted effort","gave only lukewarm support to the candidate"
    • adj lukewarm moderately warm "he hates lukewarm coffee","tepid bath water"
    • ***
Webster's Revised Unabridged Dictionary
    • Lukewarm Moderately warm; neither cold nor hot; tepid.
    • Lukewarm Not ardent; not zealous; cool; indifferent. "Lukewarm blood.""Lukewarm patriots.""An obedience so lukewarm and languishing that it merits not the name of passion."
    • ***
Century Dictionary and Cyclopedia
    • lukewarm Only moderately warm; tepid; neither cold nor hot.
    • lukewarm Not ardent; not zealous; cool; indifferent: as, lukewarm obedience.
    • ***
Chambers's Twentieth Century Dictionary
    • adj Lukewarm lūk′wawrm partially or moderately warm: indifferent—also Luke
    • ***


  • Mary Henle
    Mary Henle
    “It seems safe to say that significant discovery, really creative thinking, does not occur with regard to problems about which the thinker is lukewarm.”
  • Abraham Cowley
    Abraham Cowley
    “Lukewarmness I account a sin, as great in love as in religion.”


Webster's Revised Unabridged Dictionary
See Luke
Chambers's Twentieth Century Dictionary
M. E. leuk, luke, an extension of lew, cog. with the A.S. hleó, the source of lee; prob. confused with A.S. wlæc, wlacu, tepid; cf. Dut. leuk, Ger. lau.


In literature:

Nor is the omission due to any lukewarmness in a cause for which I am constantly speaking and writing.
"Woman and Womanhood" by C. W. Saleeby
Both ministers and their congregations are too lukewarm.
"The Gipsies' Advocate or, Observations on the Origin, Character, Manners, and Habits of The English Gipsies" by James Crabb
If there were these apprehensions from enemies, there was likewise a growing alarm from the attitude of lukewarm and dubious friends.
"The Great Events by Famous Historians, Vol. 1-20" by Various
Just fill that mug up with lukewarm water, William, will you?
"Standard Selections" by Various
Glauber's salt; work in the cold or at a lukewarm heat.
"The Dyeing of Woollen Fabrics" by Franklin Beech
The honest teamster was but a lukewarm lover.
"Pirate Gold" by Frederic Jesup Stimson
The friends of the other candidates were either lukewarm or hostile to that expedient.
"Memoir of the Life of John Quincy Adams." by Josiah Quincy
The door floated me half out of water, and that was lukewarm, so I knew that I could stand it a long time.
"The Spinner's Book of Fiction" by Various
At the table d'hote places you got a soup, followed by a lukewarm plateful of meat, vegetables, salad.
"Gigolo" by Edna Ferber
It led him to take only a lukewarm interest in the problems of morphology.
"Form and Function" by E. S. (Edward Stuart) Russell

In poetry:

Mr. Noel Coward
Was disillusioned and soured
By the lukewarm reception of his comedy
Introducing a real dromedary*
*named Ethel
"Clerihew – Noel Coward" by Edmund Clerihew Bentley
"Must write the story of her seething youth—
How lizards paddled in her lukewarm seas;
Must show the cones she ripened, and forsooth
Count seasons on her trees;
"Honours -- Part I" by Jean Ingelow
As you blaze in the windows, O Rupert,
you are revealed even to those
whose faith is lukewarm--
just as the valley cannot hide the mountain--
crowned with roses, lilies and purple
in a true revelation.
"O Jerusalem" by Hildegard von Bingen

In news:

Obama rejected in Huron Valley, Stabenow gets lukewarm support.
'Red' more lukewarm than hot.
The water's lukewarm in 'Chasing Mavericks'.
Lukewarm jobs report awaits Americans as election nears.
Perry's Freeze On College Tuition Gets Lukewarm Response.
A law signed by Gov Jerry Brown late Sunday night qualifying hundreds of thousands of undocumented Californians for drivers' licenses found a lukewarm response from the young immigrants it is supposed to benefit.
Perry's freeze on college tuition gets lukewarm response.
Ryan, Biden receive lukewarm reaction in new Post-ABC News poll.
'Hope Springs' talent, but in the most lukewarm of ways.
Tony Hawk's Pro Skater HD: 120K Downloads, Lukewarm Reviews.
Generation X is lukewarm on climate change.
'A Burning Hot Summer' review: lukewarm .
Sen Jeff Sessions concerned over economy, seemingly lukewarm on Romney.
Weather looks good, but fishing lukewarm .
What Rick Santorum's lukewarm endorsement of Mitt Romney means (+video).

In science:

We discuss the origin of the “dusty lukewarm absorber”, which we previously identified in the reddened Seyfert 1 galaxies NGC 3227 and Akn 564.
On the Nature of Intrinsic Absorption in Reddened Seyfert 1 Galaxies
Furthermore, reddened, inclined Seyfert galaxies observed at moderate to high spectral resolution all show evidence for dusty lukewarm absorbers.
On the Nature of Intrinsic Absorption in Reddened Seyfert 1 Galaxies
We predicted that the lukewarm absorber could be identified by strong, and in some cases saturated, UV absorption lines (C IV, N V, Si IV, and Mg II) in reddened Seyfert 1 galaxies.
On the Nature of Intrinsic Absorption in Reddened Seyfert 1 Galaxies
These findings led us to suggest that the dusty lukewarm absorbers lie in the galactic disks of these Seyferts, and may due to a highly ionized component in the extended narrow-line region (ENLR).
On the Nature of Intrinsic Absorption in Reddened Seyfert 1 Galaxies
We conclude that there are at least two types of UV absorbers in Seyfert 1 galaxies: dusty lukewarm absorbers in the plane of the host galaxy and absorbers intrinsic to the nucleus.
On the Nature of Intrinsic Absorption in Reddened Seyfert 1 Galaxies