dim

verbs

switch (a car's headlights) from a higher to a lower beam

dim, dip

become dim or lusterless

"the lights dimmed and the curtain rose"

dim

is a type of (narrower)

undergo a change; become different in essence; losing one's or its original nature

"She changed completely as she grew older"; "The weather changed last night"

change

make dim or lusterless

"Time had dimmed the silver"

dim

is a type of (narrower)

make dark or darker

"darken a room"

darken

make dim by comparison or conceal

blind, dim

become vague or indistinct

"The distinction between the two theories blurred"

blur, dim, slur

adjectives

lacking in light; not bright or harsh

"a dim light beside the bed"; "subdued lights and soft music"

dim, subdued

is derived from

dimness

lacking clarity or distinctness

"a dim figure in the distance"; "only a faint recollection"; "shadowy figures in the gloom"; "saw a vague outline of a building through the fog"; "a few wispy memories of childhood"

dim, faint, shadowy, vague, wispy

is derived from

dimness

made dim or less bright

"the dimmed houselights brought a hush of anticipation"; "dimmed headlights"; "we like dimmed lights when we have dinner"

dim, dimmed

is derived from

dimness

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"

black, bleak, dim

slow to learn or understand; lacking intellectual acuity

"so dense he never understands anything I say to him"; "never met anyone quite so dim"; "although dull at classical learning, at mathematics he was uncommonly quick"- Thackeray; "dumb officials make some really dumb decisions"; "he was either normally stupid or being deliberately obtuse"; "worked with the slow students"

dense, dim, dull, dumb, obtuse, slow