2
in the know(expression, idiom, communication, knowledge, attitude)
2
it is unquestionable(expression, idiom, knowledge, confidence, relations)
2
know for fact(expression, idiom, knowledge, attitude, perception)
2
no doubt(expression, idiom, communication, people, politeness)
2
no question(expression, idiom, knowledge, attitude, perception)
2
obviously(adverb, position, confidence, statement)
2
sure(adverb, position, confidence, statement)
1
i bet(expression, idiom, knowledge, attitude, confidence)
1
i recognize(expression, idiom, communication, information, people)
1
i notice(expression, information, relations, details)
1
i realize(expression, information, relations, details)
1
absolutely(adverb, position, confidence, statement)
1
i am apprised of(expression, knowledge, mind, perception)
1
i am cognizant of(expression, knowledge, mind, perception)
1
i am confident(expression, idiom, knowledge, attitude, perception)
1
i am conscious(expression, knowledge, mind, perception)
1
i am familiar with(expression, idiom, communication, people, politeness)
1
i am free from doubt(expression, idiom, knowledge, attitude, perception)
1
i am on the ball(expression, idiom, activity, communication, people)
1
i am well informed(expression, idiom, communication, knowledge, attitude)
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APASmart Define. (-0001). i don't know thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/i_don%27t_know/thesaurus/antonyms
ChicagoSmart Define. -0001. "i don't know thesaurus" https://smartdefine.org/i_don%27t_know/thesaurus/antonyms (accessed September 30, 2026).
HarvardSmart Define -0001, i don't know thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/i_don%27t_know/thesaurus/antonyms>.
MLASmart Define. "i don't know thesaurus" 30 November -0001. Web. 30 September 2026. <https://smartdefine.org/i_don%27t_know/thesaurus/antonyms>