Definition of cocksure in English:

cocksure

Syllabification: cock·sure
Pronunciation: /ˌkäkˈSHo͝or
 
/

adjective

Presumptuously or arrogantly confident.
More example sentences
  • I was stripped of a confidence that could have almost been described as arrogant - certainly cocksure - I don't think I liked myself at all in high school.
  • He is capable, confident, and cocksure, and perhaps most importantly, seemingly content with his chosen profession and lifestyle.
  • He had hated the Marines' cocksure arrogance, all the more infuriating because it was so clearly justified.
Synonyms

Origin

early 16th century: from archaic cock (a euphemism for God) + sure; later associated with cock1.

Derivatives

cocksurely

adverb
More example sentences
  • He is intensely and cocksurely moral, but his morality and his self-interest are crudely identical.
  • She has neither skills nor experience and should have aimed for entry-level positions she was qualified for rather than heading cocksurely for the top.
  • He makes the error of cocksurely mistaking his own notions of what he presumes about evolutionary biology, for the reality itself.

cocksureness

noun
More example sentences
  • In a tenure marked by cocksureness and ineptitude, his greatest accomplishment may be inadvertently awakening a media reform movement.
  • The president let that slip away, deepening divisions by adopting a my-way-or-the-highway cocksureness on both domestic and foreign affairs.
  • The troubles and disasters the country has met do not stem from threats by others, but from its own cocksureness and arrogance.

Definition of cocksure in:

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Word of the day demoralize
Pronunciation: dəˈmôrəˌlīz
verb
cause (someone) to lose confidence or hope; dispirit