Simple Definition of clueless

from our Learner's Dictionary

clueless

adjective

ˈkluːləs How to pronounce clueless (audio)
informal : not having knowledge about something : unable to understand something
When it comes to computers, I'm clueless.
her clueless kid brother
They were clueless about what to do.

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“Clueless.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/clueless. Accessed 23 Jul. 2026.

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