dim
US /dɪm/
UK /dɪm/

1.
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.