cognisant

/K AA1 G N AH0 S AH0 N T/
adjective
  1. 1

    Aware; fully informed; having understanding of a fact

    โ€œThe defendant is cognizant that this is a serious charge.โ€

Antonyms

Source: https://en.wiktionary.org/wiki/cognisant, https://en.wiktionary.org/wiki/cognizant