Find Antonyms

lighten Antonyms

Opposite of lighten

Because the opposite of lighten shifts with each meaning, the 12 antonyms and opposite words below are separated across 3 exact definitions and ranked by contrast strength.
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• verb (Context 1)

To make or become brighter or less dark in color or illumination.

Usage Example

"The eastern sky began to darken as the sun rose over the horizon."

Strongest
darken
dim
Strong
blacken
obscure

• verb (Context 2)

To make or become less serious, gloomy, or oppressive in mood, worry, or distress.

Usage Example

"A timely joke helped to depress the tense atmosphere in the conference room."

Strongest
depress
Strong
sadden
aggravate
intensify

• verb (Context 3)

To reduce the physical weight or load of something.

Usage Example

"The hikers decided to weigh down their backpacks by leaving behind extra camping gear."

Strongest
weigh down
burden
Strong
encumber
overload

Similar words to lighten

Words similar to lighten shift depending on context. Common synonyms include:

brighten
alleviate
cheer
unburden
relieve
ease
illuminate
mitigate
See all synonyms of lighten

• Nearby Words

liftoff
ligament
light
lighten
lightener
lightening
lightheaded

Cite this Entry

Wordmom. (2026). Antonyms for Lighten. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/lighten
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