Marked by excessive confidence:
— An arrogant and cocksure materialist.

synonyms: overconfident, positive.

Roget 484: believing etc. v.; certain, sure, assured, positive, cocksure, satisfied, confident, unhesitating, convinced, secure.    under the impression; impressed with, imbued with, penetrated with.    confiding, suspectless^†; unsuspecting, unsuspicious; void of suspicion; credulous etc. 486; wedded to.    believed etc. v.; accredited, putative; unsuspected.    worthy of, deserving of, commanding belief; credible, reliable, trustworthy, to be depended on; satisfactory; probably etc. 472; fiducial^†, fiduciary; persuasive, impressive.    relating to belief, doctrinal.    ... show more