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

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
On the field, there’s drama between head coach Danny Roarke (Christopher Meloni) and the cocky quarterback.

— Jason P. Frank, Vulture, 13 Oct. 2026

Definition of cocky

Adjective

If Taipei refrains from crossing the ultimate red line of declaring formal independence, Beijing appears confident in its long-term strategy of integration.

— Ningrong Liu, Fortune, 23 Oct. 2026
In short, analysts are confident that music streaming services such as Spotify can enforce strict account policies, raise prices, and still make more money.

— Nick Indge, ArsTechnica, 23 Oct. 2026

Definition of confident

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

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
The photos and trailer released Thursday show Boyle as a brazen, ambitious college student who teams up with Garner’s brainy Ellison to launch their own cryptocurrency business.

— Lily Ford, HollywoodReporter, 8 Oct. 2026

Definition of brazen

Adjective

Finished in the label’s tiger yellow with bold black striping, the bike gave the collaboration a tangible centerpiece beyond the clothes.

— Footwear News, Footwear News, 22 Oct. 2026
Pumpkin flowers, ghosts in cat-eye sunglasses, and bold checker-print accent nails all scream fun.

— Ariel Wodarcyk, InStyle, 22 Oct. 2026

Definition of bold

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“Cocksure.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/cocksure. Accessed 27 Oct. 2026.

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Synonyms of cocksure

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