COGNIZANT

cognizant, aware(p), cognisant

(adjective) (sometimes followed by ‘of’) having or showing knowledge or understanding or realization or perception; “was aware of his opponent’s hostility”; “became aware of her surroundings”; “aware that he had exceeded the speed limit”

Source: WordNet® 3.1

Etymology

Adjective

cognizant (comparative more cognizant, superlative most cognizant)

Aware; fully informed; having understanding of a fact

Antonyms

• unwitting

Source: Wiktionary

Cog"ni*zant ( or ), a. Etym: [See Cognizance, and cf. Connusant.]

Definition: Having cognizance or knowledge. (of).

Source: Webster’s Unabridged Dictionary 1913 Edition