dim

US /dɪm/
UK /dɪm/
"dim" picture
1.

not shining brightly or clearly

:
The light in the room was very dim.
His eyesight has grown dim with age.
2.

(of a prospect or hope) not good or favorable

:
The future looks dim for the struggling company.
Hopes for a quick resolution were dim.
3.

(of a person or their eyes) having poor eyesight

:
My grandmother is getting a bit dim now, she can barely read.
He's not just old, he's also a bit dim in his understanding.
1.

make or become less bright or clear

:
Please dim the lights, it's too bright in here.
The streetlights began to dim as dawn approached.