• WordNet 3.6
    • adj nonchalant marked by blithe unconcern "an ability to interest casual students","showed a casual disregard for cold weather","an utterly insouciant financial policy","an elegantly insouciant manner","drove his car with nonchalant abandon","was polite in a teasing nonchalant manner"
    • ***
Webster's Revised Unabridged Dictionary
    • a Nonchalant Indifferent; careless; cool.
    • ***
Century Dictionary and Cyclopedia
    • nonchalant Indifferent; unconcerned; careless; cool: as, he replied with a nonchalant air.
    • ***


  • Francoise Sagan
    Francoise Sagan
    “Jazz music is an intensified feeling of nonchalance.”


Webster's Revised Unabridged Dictionary
F., fr. non, not (L. non,) + chaloir, to concern one's self for, fr. L. calere, to be warm, to be inflamed with desire, to be troubled. See Non-, and Caldron


In literature:

Without reply Locke shrugged nonchalantly and smiled.
"The Master Mystery" by Arthur B. Reeve and John W. Grey
Read the following selection in a nonchalant manner, never pausing to think what the words really mean.
"The Art of Public Speaking" by Dale Carnagey (AKA Dale Carnegie) and J. Berg Esenwein
Afterwards, in the wide prairie, we saw a lively picture of nonchalance (to speak in the fashion of clear Ireland).
"At Home And Abroad" by Margaret Fuller Ossoli
Encouraged by the little animal's nonchalance, he dashed after it with a wild and startling whoop.
"Sundown Slim" by Henry Hubert Knibbs
As for Nan, she flicked the matter from her with the utmost nonchalance.
"The Odds" by Ethel M. Dell
With the utmost nonchalance he insisted that he must have time for consideration.
"The Clarion" by Samuel Hopkins Adams
Mr. and Mrs. Evringham looked on, the latter marveling at the child's nonchalance.
"Jewel's Story Book" by Clara Louise Burnham
Crombie nonchalantly settled himself in a chair, at ease.
"Short Story Classics (American) Vol. 2" by Various
But, as I drew back, he advanced and strolled nonchalantly past me, at five yards distance, down to the quay-steps.
"Poison Island" by Arthur Thomas Quiller-Couch (Q)
Kay blushed, but instantly decided to appear nonchalant.
"The Pride of Palomar" by Peter B. Kyne

In poetry:

But I smile back, in airy nonchalance,--
The more determined on my wayward quest,
As some bright memory a moment dawns
A morning in my breast--
"A Country Pathway" by James Whitcomb Riley
With measureless nonchalance and pride,
You take the humming bird's caress;
The brown melodious bee must bide
Your haughty, arrogant willfulness!
"The Tulip (Caveat regina)" by Maurice Thompson
How nonchalantly she wears her clothes,
How expensive they are as well!
And the sound of her voice is as soft and deep
As the Christ Church tenor bell.
"Lenten Thoughts Of A High Anglican" by Sir John Betjeman
Slim youth on the bathing beach,
Nonchalantly exposing your beauty
To the watery gaze of drowned females,
How little they dream
That you belong
Wholly to me, A slim youth!
"Narcissus" by Benjamin Musser
Strange is it not that, oft her Dolour cloaking
In hurried Puffs with Nonchalance provoking,
No woman reads that apodictic Ode
"How to be Happy Even Though You're Smoking?"
"The Rubáiyát of Omar Khayyám Jr." by Wallace Irwin
Already a nonchalant breed, silently emerging, appears on the
People's lips salute only doers, lovers, satisfiers, positive
knowers; There will shortly be no more priests—I say their
work is done,
"As I Sat Alone" by Walt Whitman

In news:

Seth Myers offers a rather nonchalant explanation for his recent success.
"I don't know," he responded nonchalantly.
Instead of pulling over after a police car turned on his lights behind her, the Coral Springs, FL, woman nonchalantly ventured through the McDonald's drive-thru to order lunch.
COLUMBIA — Chase Daniel nonchalantly trotted off the field, making a pit stop for a short celebration with his backup, Chase Patton.
Moss gets a little racy in nothing but a trench coat and black bra, but she's very nonchalant about the photo that may surprise some fans.
"Obama has gone from touting his commitment to changing business as usual to nonchalantly embracing it," the RNC said.
We've all done it -- you know, walking nonchalantly yet managing to trip over an object that rises out of the ground no more than an inch.
"Some guy just walked by me in a tinfoil hat playing a melodica," he tells me nonchalantly, then pauses.
I stood by the open cockpit door of the little four-passenger Piper and imagined myself the very image of a nonchalant charter pilot.
Waiting to cross the street, a pedestrian nonchalantly leaned against a lamp pole, and the pole nearly fell over.
Billy Zoom sauntered nonchalantly onto the stage of the Majestic Ventura Theater on Sunday night, picked up his guitar, and beamed at the audience.
If there exists a realm in which the speed and edge of classic punk rock seamlessly and unironically meld with the nonchalant restraint of 1960s surf poppers like Dick Dale and his Del-tones, Orca Team has certainly found it.
Plain and simple, if I had this cat and he did something like and was so nonchalant about it, I'd find another home for him.
Somewhere is the mystic shadow nonchalantly referenced as my youth someone taught me a legal theory called "the Prudent Person Principle".
Stonewall Uprising confronts our nonchalant present-day sexual freedoms with the history of struggle that peaked in the 1969 Stonewall riots.