COCKSURE Synonyms: 93 Similar and Opposite Words

Q: How does the adjective 'cocksure' contrast with its synonyms?

Some common synonyms of cocksure are certain , positive , and sure . While all these words mean "having no doubt or uncertainty," cocksure implies presumptuous or careless positiveness. // you're always so cocksure about everything

Q: Where would 'certain' be a reasonable alternative to 'cocksure'?

While in some cases nearly identical to cocksure , certain may apply to a basing of a conclusion or conviction on definite grounds or indubitable evidence. // police are certain about the cause of the fire

Q: When can 'positive' be used instead of 'cocksure'?

The words positive and cocksure are synonyms, but do differ in nuance. Specifically, positive intensifies sureness or certainty and may imply opinionated conviction or forceful expression of it. // I'm positive that's the person I saw

Q: When is 'sure' a more appropriate choice than 'cocksure'?

The meanings of sure and cocksure largely overlap; however, sure usually stresses the subjective or intuitive feeling of assurance. // felt sure that I had forgotten something

cocksure

adjective

ˈkäk-ˈshu̇r

Definition of cocksure

as in cocky

displaying or marked by rude boldness his cocksure assertion that only he could solve the problem

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

as in confident

having or showing a mind free from doubt you're always so cocksure about everything

Synonyms & Similar Words

Antonyms & Near Antonyms

Synonym Chooser

How does the adjective cocksure contrast with its synonyms?

Some common synonyms of cocksure are certain, positive, and sure. While all these words mean "having no doubt or uncertainty," cocksure implies presumptuous or careless positiveness.

you're always so cocksure about everything

Where would certain be a reasonable alternative to cocksure?

While in some cases nearly identical to cocksure, certain may apply to a basing of a conclusion or conviction on definite grounds or indubitable evidence.

police are certain about the cause of the fire

When can positive be used instead of cocksure?

The words positive and cocksure are synonyms, but do differ in nuance. Specifically, positive intensifies sureness or certainty and may imply opinionated conviction or forceful expression of it.

I'm positive that's the person I saw

When is sure a more appropriate choice than cocksure?

The meanings of sure and cocksure largely overlap; however, sure usually stresses the subjective or intuitive feeling of assurance.

felt sure that I had forgotten something

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 cocksure Set on a white-run construction site in West Africa, the story follows an edgy foreman anxiously awaiting his bride, whose presence meets resistance from a cocksure engineer clinging to the hyper-masculine status quo. — Naman Ramachandran, Variety, 4 Sep. 2025 Blyth plays Cal, a jumpy and cocksure construction manager who is very much the third wheel — or more like the monkey wrench — in the recent couple formed by Leonie and the considerably older Horn. — Jordan Mintzer, HollywoodReporter, 4 Sep. 2025 No brand should be so cocksure as to presume its products are irreplaceable. — Cate Rubenstein, Rolling Stone, 11 Jan. 2023 Yann Gael, Roger Sallah and Mentor Ba entertain as tough guy gunslingers, but their cocksure attitude is tested when a paranormal foe threatens them and their stash of gold. — Thomas Page, CNN, 23 Sep. 2022 See All Example Sentences for cocksure

Recent Examples of Synonyms for cocksure

Adjective

Winter plays Hogan Young, the charming, cocky and ambitious son of the Vice President, who has every intention of following his father into politics — and ultimately surpassing him.

— Matt Grobar, Deadline, 26 Oct. 2026
Innanen‘s characters in the five-episode series include a manager lacking confidence, a cocky cruise specialist, an adventure expert who deeply fears adventure and a Francophile who hasn‘t left American soil since the late ’90s.

— Katie Kilkenny, HollywoodReporter, 14 Oct. 2026

Definition of cocky

Adjective

His bold, confident display of desire stood in sharp contrast to my own insecurities and repression.

— Naman Ramachandran, Variety, 6 Nov. 2026
Across Europe, responsibility for retirement is shifting from governments and employers to individuals, and women are less confident than men that the state will provide.

— Sam Birchall, Fortune, 6 Nov. 2026

Definition of confident

Adjective

Presumably reserved for subsequent seasons are his refusal to fight in Vietnam, activism, absences and comebacks, the Thrilla in Manila, the Rumble in the Jungle, Parkinson’s — though this is a good place to stop, arc-wise and art-wise.

— Robert Lloyd, Los Angeles Times, 3 Nov. 2026
And as for Escola, the Tony-winning actor and writer's film-star curls landed right between Palmer's and Anderson's, style-wise, with a pageboy shape and that dramatic swoop teased and sculpted into an exaggerated shape for a cheeky finish.

— Kara Nesvig, Allure, 3 Nov. 2026

Definition of wise

Adjective

The movie is an epic series of harrumphs and harangues, propelled from room to room—and, in time, out into the world beyond the estate—by a spirit of impudent absurdism and corrosive cynicism which seems to emanate from Digger himself.

— Justin Chang, New Yorker, 30 Sep. 2026
Mantello wasn’t being impudent.

— Theater Critic, Los Angeles Times, 6 May 2026

Definition of impudent

Adjective

When Harry boosts a USB crypto wallet from a brazen young criminal and spoiled rich kid, Dylan (Will Price), Ben has no idea what to do with it—plugging it into his circa-1995 desktop personal computer sends the machine into a tailspin.

— Stephanie Zacharek, Time, 30 Oct. 2026
Lovato’s dress, courtesy of Fanci Club, was a deep shade of eggplant purple and topped off with a scarlet-red lace bralette, making for a brazen club-friendly outfit only enhanced by the even more noticeable shoes.

— Erin Wisti, Footwear News, 12 Oct. 2026

Definition of brazen

Adjective

President Kim Noltemy’s strategy, to divide labor and empower an array of specialists, is a bold counter to the traditional model of the all-powerful artistic and music director.

— Tim Greiving, Los Angeles Times, 5 Nov. 2026
Unfortunately, negotiating with Uber and DoorDash takes time, money, and lawyers, and though those repercussions might show up eventually, and maybe even prove effective, e-bike cowboys are getting bolder, faster, and more defiant by the day.

— Justin Davidson, Curbed, 5 Nov. 2026

Definition of bold

Cite this Entry

Style

“Cocksure.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/cocksure. Accessed 10 Nov. 2026.

Copy Citation

Synonyms of cocksure

adjective

Synonym Chooser

Example Sentences

Browse Nearby Words

Cite this Entry

More from Merriam-Webster

Word of the Day

defer

Popular in Grammar & Usage

How to Use 'Who' vs. 'Whom'

31 Useful Rhetorical Devices

More Commonly Misspelled Words

Merriam-Webster’s Great Big List of Words You Love to Hate

'Affect' vs. 'Effect'

Popular in Wordplay

Great Big List of Beautiful and Useless Words, Vol. 5

9 Words That Sound Like Insults But Aren't

The Longest Long Words List

Even More Bird Names that Sound Like Insults (and Sometimes Are)

12 Lovely and Unusual Words for the Natural World

Popular

How to Use 'Who' vs. 'Whom'

Great Big List of Beautiful and Useless Words, Vol. 5

9 Words That Sound Like Insults But Aren't

Games & Quizzes