Crossword Genius

Having insufficient lighting is stupid (3)

Ross

I believe the answer is:

dim

I'm a little stuck... Click here to teach me more about this clue!

'is stupid' is the definition.
(similar in meaning)

I can't explain the rest of the clue.

Can you help me to learn more?

(Other definitions for dim that I've seen before include "Gloomy; dull" , "Without much light" , "reduce volume" , "Not clear or not too bright" , "Vague" .)

I've seen this clue in the Evening Standard.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.