Definition of "Dim" :
verb: become vague or indistinct
verb: make dim by comparison or conceal
verb: make dim or lusterless
"Time had dimmed the silver."
verb: become dim or lusterless
"The lights dimmed and the curtain rose."
verb: switch (a car's headlights) from a higher to a lower beam
adjective: lacking in light; not bright or harsh
"A dim light beside the bed."
adjective: made dim or less bright
"The dimmed houselights brought a hush of anticipation."
adjective: slow to learn or understand; lacking intellectual acuity
"Never met anyone quite so dim."
adjective: lacking clarity or distinctness
"A dim figure in the distance."
adjective: offering little or no hope
"Took a dim view of things."