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.

M dwarf stars are smaller, cooler, and dimmer than our Sun, yet most of them host at least one rocky planet about the size of Earth.

From Science Daily • Mar. 27, 2026

The drop in sentiment mostly reflected dimmer short-term expectations, with many consumers staying more optimistic about longer-term prospects, Hsu said.

From The Wall Street Journal • Mar. 27, 2026

Hopes for interest-rate cuts are growing even dimmer on Wall Street.

From The Wall Street Journal • Mar. 18, 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

Cepheid stars pulsate, getting brighter and dimmer in a very predictable way; the way they pulsate is closely related to how much light they put out.

From "Zero: The Biography of a Dangerous Idea" by Charles Seife