[ dim ]
/ dɪm /
adjective, dim·mer, dim·mest.
not bright; obscure from lack of light or emitted light: a dim room; a dim flashlight.
not seen clearly or in detail; indistinct: a dim object in the distance.
not clear to the mind; vague: a dim idea.
not brilliant; dull in luster: a dim color.
not clear or distinct to the senses; faint: a dim sound.
not seeing clearly: eyes dim with tears.
tending to be unfavorable; not likely to happen, succeed, be favorable, etc.: a dim chance of winning.
not understanding clearly.
rather stupid; dim-witted.
verb (used with object), dimmed, dim·ming.
to make dim or dimmer.
to switch (the headlights of a vehicle) from the high to the low beam.
verb (used without object), dimmed, dim·ming.
to become or grow dim or dimmer.
dim out, (in wartime) to reduce the night illumination of (a city, ship, etc.) to make it less visible from the air or sea, as a protection from enemy aircraft or ships.
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Idioms for dim
take a dim view of, to regard with disapproval, skepticism, or dismay: Her mother takes a dim view of her choice of friends.
Origin of dim
before 1000; Middle English, Old English dim(me), cognate with Old Frisian dim,Old Norse dimmr
synonym study for dim
1. See dark.
OTHER WORDS FROM dim
dimly, adverbdim·ma·ble, adjectivedimness, nounun·dim, adjective
un·dim·ly, adverbun·dimmed, adjective
Definition for dim (2 of 3)
(in prescriptions) one-half.
Origin of dim.1
From the Latin word dīmidius
Definition for dim (3 of 3)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
British Dictionary definitions for dim
/ (dɪm) /
adjective dimmer or dimmest
badly illuminateda dim room
not clearly seen; indistinct; fainta dim shape
having weak or indistinct visioneyes dim with tears
lacking in understanding; mentally dull
not clear in the mind; obscurea dim memory
lacking in brilliance, brightness, or lustrea dim colour
tending to be unfavourable; gloomy or disapproving (esp in the phrase take a dim view)
verb dims, dimming or dimmed
to become or cause to become dim
(tr) to cause to seem less bright, as by comparison
US and Canadian (tr) to switch (car headlights) from the main to the lower beamAlso called (in Britain and certain other countries): dip
Derived forms of dimdimly, adverbdimness, noun
Word Origin for dim
Old English dimm; related to Old Norse dimmr gloomy, dark
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medical definitions for dim
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Idioms and Phrases with dim
see take a dim view.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.