What does cockiness mean?
Cockiness is the quality of being arrogantly self-assured — confidence pushed past the point of justification. The word derives from the adjective cocky, which itself evokes the strutting self-importance popularly associated with the rooster. Unlike mere confidence or self-belief, cockiness carries a clear negative charge: it implies not only that someone thinks highly of themselves, but that this self-regard is excessive, showy, or blind to reality. It is most often used in evaluative contexts — sports commentary, workplace criticism, personal assessments — as in 'his cockiness cost him the deal' or 'success tempered her early cockiness.' Grammatically it functions as an uncountable noun, typically modified by degree words such as 'sheer,' 'pure,' or 'a hint of.' The word is informal but widely understood across British and American English. Its enduring usefulness lies in naming a very specific social failing: the gap between how capable someone actually is and how capable they believe themselves to be.
nounThe quality of being offensively confident or self-assured in an arrogant way.
- Offensive, arrogant overconfidence; an exaggerated belief in one's own abilities, especially when unwarranted.
"His cockiness cost him the match when he underestimated his opponent."
"The rookie's cockiness vanished after his first encounter with the defending champions."
"There was a touch of cockiness in her smile as she predicted the outcome before the results were even announced."
Rarely used; cockiness normally appears only in the singular as an uncountable noun. A plural form would be limited to referring to distinct instances or types of cocky behaviour.
"The memoir catalogues the various cockinesses of his youth."
Cockiness literally borrows its attitude from the barnyard rooster — a bird so famously strutting and self-important that 'cocky' has meant arrogant for over two centuries.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of cockiness
Cockiness is formed from the adjective cocky plus the noun-forming suffix -ness. Cocky emerged in English in the late eighteenth century, meaning conceited or aggressively self-assured, and almost certainly derives from cock, the word for a male domestic fowl whose strutting, combative behaviour made it a longstanding emblem of bravado. The same image underlies older expressions such as cocksure, which dates back further and conveys a similar sense of unshakable, often unwarranted certainty.
Related word forms
How cockiness is actually used
Cockiness is informal to neutral in register and carries a distinctly negative connotation — it implies confidence that has tipped into arrogance. It is uncountable in normal use and typically appears with quantifying phrases like 'a bit of' or 'sheer'. While related to confidence, it specifically suggests confidence that is excessive or unjustified.
Easily confused with cockiness
A cockney is a native of the East End of London (or their dialect), while cockiness means arrogant overconfidence.