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

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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

The recruits are rounded out by Jude Callan (Ronen Rubinstein), a charming, cocky bad boy with unexpected depth.

— Aramide Tinubu, Variety, 25 Sep. 2026
Delafonte is Playboy Ray, a cocky, obnoxious, and supremely talented all-around cowboy.

— Denise Petski, Deadline, 25 Sep. 2026

Definition of cocky

Adjective

Helping someone become confident about protecting herself online can be equally valuable, particularly as more everyday tasks move online and onto apps.

— Ethan Stone October 9, Idaho Statesman, 9 Oct. 2026
The 6-foot-5, 242-pounder has learned the roles and responsibilities at defensive end, middle linebacker, weak side linebacker and strong side linebacker, and the Falcons are confident in his ability to play each at a high level.

— Daniel Flick, AJC.com, 9 Oct. 2026

Definition of confident

Adjective

Street-wise, independent travelers wanting to immerse themselves in the city, and live like locals without any of the hassle.

— Condé Nast, Condé Nast Traveler, 6 Oct. 2026
But the show already had a natural stopping point coming up that would be appropriate, storytelling-wise.

— Lexy Perez, HollywoodReporter, 6 Oct. 2026

Definition of wise

Adjective

The Braves Report itself will, at some point, enter semi-occasional offseason mode — but not sure exactly what that looks like yet.

— Tyler Estep, AJC.com, 9 Oct. 2026
Cowboys cornerback DaRon Bland, who was given a contract extension due largely to his ability to intercept passes and return them for touchdowns, dropped a sure pick-six late in the fourth quarter that would have changed the game.

— Fort Worth Star-Telegram, Fort Worth Star-Telegram, 9 Oct. 2026

Definition of sure

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

That meant going their own way, being a little insolent and being arrogant.

— Stephanie Nolasco, FOXNews.com, 12 July 2026
In the 18th century, lusty also meant insolent, which might have conveyed Anderson’s frustrations with Dina’s unwillingness to accept his authority over her.

— Carolyn Zola, The Conversation, 11 June 2026

Definition of insolent

Adjective

Moscow's forces pounded apartment buildings, offices, data centers and a building of the National Academy of Sciences of Ukraine in downtown Kyiv in a brazen daytime attack.

— CBS News, CBS News, 28 Sep. 2026
There are also three shields on the top deck, high up where everyone can stare accusatorily at whoever is brazen enough to grab one.

— Alice Burton, Vulture, 18 Sep. 2026

Definition of brazen

Adjective

Both Vitale and Blazy have used bold prints, colors and textures on more classic silhouettes, like the jean, the court shoe or the Mary Jane, to create highly recognizable — yet wearable — clothes and shoes.

— Joe Bobowicz, Vogue, 8 Oct. 2026
But when hurricanes tear through Southeastern towns, the hot meals and bold yellow signs of the local Waffle House provide another kind of comfort.

— ABC News, ABC News, 8 Oct. 2026

Definition of bold

Cite this Entry

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“Cocksure.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/cocksure. Accessed 13 Oct. 2026.

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Synonyms of cocksure

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