clueless
Clueless (adj) means having no understanding of a situation; completely uninformed. Example: “He was clueless about how to fix the car.”
How to use clueless
Learner’s notesIn plain EnglishHaving no idea what's going on; totally unaware or uninformed.
Informal, often used to gently mock someone for not understanding something obvious.
Word forms
- Comparative
- more clueless
- Superlative
- most clueless
Fill the gap
Can you complete this real example?
He was _____ about how to fix the car.
Etymology
Built from clue plus the suffix -less, meaning "without" — literally "without clues".