Definitions

nonchalant

[non-shuh-lahnt, non-shuh-lahnt, -luhnt] / ˌnɒn ʃəˈlɑnt, ˈnɒn ʃəˌlɑnt, -lənt /

ADJECTIVE

easygoing, laid back

Synonyms

STRONGEST

aloof apathetic casual detached dispassionate effortless lackadaisical lukewarm mellow offhand unconcerned unemotional unflappable unperturbed unruffled

WEAK

airy blasé calm careless cold collected composed cool disimpassioned disinterested easy happy impassive imperturbable incurious indifferent insouciant light listless loose neglectful negligent neutral placid serene smooth trifling uncaring unexcited unfeeling unimpressible untroubled

Antonyms

STRONGEST

biased careful caring concerned deliberate emotional enthusiastic excited feeling hard interested nervous planned responsive upset worried

WEAK

intense jumpy unnerved

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Heading into the results, investors were a bit more nonchalant about threats to the economy.

From MarketWatch • Feb. 14, 2026

Dimon, often more willing than most to focus on the dour side, said he was concerned about how investors appeared nonchalant about risks in credit, although he acknowledged consumer defaults looked normal so far.

From The Wall Street Journal • Oct. 15, 2025

"There's not gonna be a chill, nonchalant bone in my body that day," says Rose.

From BBC • Jun. 23, 2025

However, with the nonchalant dance-funk of “Freedom! ’90” — a pedestal-detonating manifesto on which he announces “I don’t belong to you/And you don’t belong to me” — Michael takes pleasure in ripping up his playbook.

From Salon • Oct. 20, 2017

Perhaps if more people were aware of the First Wave and Second Wave extinctions, they’d be less nonchalant about the Third Wave they are part of.

From "Sapiens: A Brief History of Humankind" by Yuval Noah Harari

Vocabulary lists containing nonchalant

Essential Academic Vocabulary for High School Students, List 1

Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!

100 Top "SAT" Words

Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!

Grade 9, List 1

Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!