Antonyms of noun cognizance

1 of 3 senses of cognizance

Sense 1
awareness, consciousness, cognizance, cognisance, knowingness -- (having knowledge of; "he had no awareness of his mistakes"; "his sudden consciousness of the problem he faced"; "their intelligence and general knowingness was impressive")
       Antonym of incognizance (Sense 1)
      => incognizance -- (a lack of knowledge or recognition)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun cognizance

3 senses of cognizance

Sense 1
awareness, consciousness, cognizance, cognisance, knowingness -- (having knowledge of; "he had no awareness of his mistakes"; "his sudden consciousness of the problem he faced"; "their intelligence and general knowingness was impressive")
       => knowing -- (a clear and certain mental apprehension)

Sense 2
cognizance, ken -- (range of what one can know or understand; "beyond my ken")
       => knowing -- (a clear and certain mental apprehension)

Sense 3
cognizance -- (range or scope of what is perceived)
       => perception -- (knowledge gained by perceiving; "a man admired for the depth of his perception")