offering little or no hope; "the future looked black"; "prospects were bleak"; "Life in the Aran Islands has always been bleak and difficult"- J M Synge; "took a dim view of things"
If you dim a light or if it dims, it becomes less bright. Dim the lighting -- it is unpleasant to lie with a bright light shining in your eyes The houselights dimmed
Measure in a single line, as length, breadth, height, thickness, or circumference; extension; measurement; us
If your memories dim or if something dims them, they become less clear in your mind. Their memory of what happened has dimmed The intervening years had dimmed his memory
Of obscure vision; not seeing clearly; hence, dull of apprehension; of weak perception; obtuse