clueless

adjective clue·less \ˈklü-ləs\

: not having knowledge about something : unable to understand something

Full Definition of CLUELESS

: having or providing no clue <a clueless case for the police to solve>

: completely or hopelessly bewildered, unaware, ignorant, or foolish <clueless about what they want>

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1743

Synonyms: ignorant, incognizant, innocent, insensible, nescient, oblivious, unacquainted, unaware, unconscious, uninformed, unknowing, unmindful, unwitting

Antonyms: acquainted, aware, cognizant, conscious, conversant, grounded, informed, knowing, mindful, witting

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