Definitions

dimmer

[dim-er] / ˈdɪm ər /

ADJECTIVE

darkish

Synonyms

STRONGEST

blurred cloudy dark dingy dull faint fuzzy gloomy lackluster murky shadowy vague

STRONG

dusk faded gray mat muted obscured overcast pale sullied tarnished

WEAK

blah bleary caliginous dreary dusky flat ill-defined indistinct lightless monotone monotonous opaque poorly lit tenebrous unclear unilluminated weak

Antonyms

STRONGEST

bright cheerful clear distinct encouraging happy light lively luminous shining sparkling vivacious

WEAK

brilliant favorable good intelligent smart

ADJECTIVE

unfavorable with regard to opinion

Synonyms

STRONGEST

depressing gloomy somber

STRONG

disapproving discouraging

WEAK

skeptical suspicious unpromising

Antonyms

STRONGEST

cheerful encouraging happy joyful

WEAK

bright brilliant clear distinct favorable good intelligent light smart

ADJECTIVE

not very intelligent

Synonyms

STRONGEST

dull stupid

STRONG

slow

WEAK

boorish dense dim-witted doltish dumb oafish obtuse slow on uptake thick weak-minded

Antonyms

STRONGEST

intelligent smart

WEAK

bright brilliant clear distinct favorable good light

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

They now forecast total annual sales of about 16 million vehicles or fewer this year, and that outlook has grown even dimmer as the conflict in Iran keeps gas prices high.

From The Wall Street Journal • May 28, 2026

For that to happen, earnings won’t need to necessarily disappoint; rather, investors can choose to take a dimmer view on the immense corporate investment in AI-related data centers.

From MarketWatch • May 3, 2026

However, the positions of much dimmer galaxies and clouds of gas that also emit Lyman alpha light have remained mostly hidden.

From Science Daily • Mar. 8, 2026

The litigation comes as the public has taken a dimmer view of social media, particularly for young people.

From The Wall Street Journal • Jan. 26, 2026

I don’t want to, but, as I see more of what is happening out there, the tiny spark of hope that we will see you again grows dimmer.

From "Code Name Kingfisher" by Liz Kessler