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

He’s known for his cocky attitude, teaming up with fellow hero Blue Beetle and traveling with his robot companion Skeets.

— Jordan Moreau, Variety, 31 July 2026
Dix was a baseball prodigy too cocky and flashy for his own good who now coasts through life on his long-ago heroics coupled with charm and an undeserved diet of luck.

— Stuart Miller, Los Angeles Times, 29 July 2026

Definition of cocky

Adjective

Head coach Nuno Espirito Santo is confident about their chances of sealing promotion back to the top flight at the first opportunity but, ahead of Sunday’s away fixture, there are several talking points.

— Roshane Thomas, New York Times, 15 Aug. 2026
Massimo Di Odoardo, vice president of gas and LNG research at Wood Mackenzie, is also confident that Europe will avoid a dire scenario of energy shortages and blackouts.

— Hanna Ziady, CNN Money, 14 Aug. 2026

Definition of confident

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

But intelligence officials previously told The Associated Press that Russia’s security services are now more brazen in their choice of targets, going after Russian activists and foreign supporters of Ukraine as well as military defectors.

— Claudia Ciobanu, Chicago Tribune, 13 Aug. 2026
But intelligence officials previously told The Associated Press that Russia's security services are now more brazen in their choice of targets, going after Russian activists and foreign supporters of Ukraine as well as military defectors.

— CBS News, CBS News, 13 Aug. 2026

Definition of brazen

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“Cocksure.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/cocksure. Accessed 18 Aug. 2026.

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