Simple Definition of clueless
: not having knowledge about something : unable to understand something
Full Definition of clueless
1 : having or providing no clue <a clueless case for the police to solve>
2 : completely or hopelessly bewildered, unaware, ignorant, or foolish <clueless about what they want>
Examples of clueless in a sentence
When it comes to computers, I'm clueless.
They were clueless about what to do.
First Known Use of clueless
Learn More about clueless
Thesaurus: All synonyms and antonyms for clueless
Seen and Heard
What made you want to look up clueless? Please tell us where you read or heard it (including the quote, if possible).