Antonyms of adj cognisant
1 sense of cognisant
Sense 1
aware (predicate) (vs. unaware), cognizant, cognisant -- ((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")
Similarity of adj cognisant
1 sense of cognisant
Sense 1
aware (predicate) (vs. unaware), cognizant, cognisant -- ((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")
=> alert, alive (predicate), awake (predicate) -- (mentally perceptive and responsive;"an alert mind"; "alert to the problems"; "alive to what is going on"; "awake to the dangers of her situation"; "was now awake to the reality of his predicament")
=> conscious (predicate) -- ((followed by `of') showing realization or recognition of something; "few voters seem conscious of the issue's importance"; "conscious of having succeeded"; "the careful tread of one conscious of his alcoholic load"- Thomas Hardy)
=> sensible -- (aware intuitively or intellectually of something sensed; "made sensible of his mistakes"; "I am sensible that the mention of such a circumstance may appear trifling"- Henry Hallam; "sensible that a good deal more is still to be done"- Edmund Burke)
Also See-> awake#1; conscious#2; sensible#2, sensitive#3; witting#1