adj

clueless

KLOO-luhs

adj

Having no understanding of a situation; completely uninformed.

"He was clueless about how to fix the car."

"She felt clueless on her first day at the new job."

How to Use Clueless

Learner’s notes

In plain EnglishHaving no idea what's going on; totally unaware or uninformed.

When to use it

Informal, often used to gently mock someone for not understanding something obvious.

Common pairings

completely clueless clueless about

more clueless comparative, most clueless superlative

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Can you complete this real example?

He was _____ about how to fix the car.

Built from clue plus the suffix -less, meaning "without" — literally "without clues".

clueful informed

learned informed

useless ageless wireless hopeless homeless tireless careless lifeless baseless timeless loveless nameless

clueful informed learned