LIGHTEN Synonyms: 66 Similar and Opposite Words

Q: How is the word 'lighten' different from other verbs like it?

Some common synonyms of lighten are allay , alleviate , assuage , mitigate , and relieve . While all these words mean "to make something less grievous," lighten implies reducing a burdensome or depressing weight. // good news would lighten our worries

Q: When can 'allay' be used instead of 'lighten'?

The meanings of allay and lighten largely overlap; however, allay implies an effective calming or soothing of fears or alarms. // allayed their fears

Q: Where would 'alleviate' be a reasonable alternative to 'lighten'?

The words alleviate and lighten can be used in similar contexts, but alleviate implies temporary or partial lessening of pain or distress. // the lotion alleviated the itching

Q: In what contexts can 'assuage' take the place of 'lighten'?

The synonyms assuage and lighten are sometimes interchangeable, but assuage implies softening or sweetening what is harsh or disagreeable. // ocean breezes assuaged the intense heat

Q: When would 'mitigate' be a good substitute for 'lighten'?

While in some cases nearly identical to lighten , mitigate suggests a moderating or countering of the effect of something violent or painful. // the need to mitigate barbaric laws

Q: When is 'relieve' a more appropriate choice than 'lighten'?

The words relieve and lighten are synonyms, but do differ in nuance. Specifically, relieve implies a lifting of enough of a burden to make it tolerable. // took an aspirin to relieve the pain

lighten 1 of 2

verb (1)

Definition of lighten

as in to brighten

to become glad or hopeful the patient lightened when he heard the disease responds well to treatment

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lighten

2 of 2

verb (2)

ˈlī-tᵊn

as in to illumine

to supply with light the room was gradually lightened by the rising sun

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Antonyms & Near Antonyms

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How is the word lighten different from other verbs like it?

Some common synonyms of lighten are allay, alleviate, assuage, mitigate, and relieve. While all these words mean "to make something less grievous," lighten implies reducing a burdensome or depressing weight.

good news would lighten our worries

When can allay be used instead of lighten?

The meanings of allay and lighten largely overlap; however, allay implies an effective calming or soothing of fears or alarms.

allayed their fears

Where would alleviate be a reasonable alternative to lighten?

The words alleviate and lighten can be used in similar contexts, but alleviate implies temporary or partial lessening of pain or distress.

the lotion alleviated the itching

In what contexts can assuage take the place of lighten?

The synonyms assuage and lighten are sometimes interchangeable, but assuage implies softening or sweetening what is harsh or disagreeable.

ocean breezes assuaged the intense heat

When would mitigate be a good substitute for lighten?

While in some cases nearly identical to lighten, mitigate suggests a moderating or countering of the effect of something violent or painful.

the need to mitigate barbaric laws

When is relieve a more appropriate choice than lighten?

The words relieve and lighten are synonyms, but do differ in nuance. Specifically, relieve implies a lifting of enough of a burden to make it tolerable.

took an aspirin to relieve the pain

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of lighten

Verb

Airlines may have to lighten the load by removing passengers or cargo, or carrying less fuel. — Rio Yamat, Chicago Tribune, 5 Aug. 2026 As families begin back-to-school shopping, here’s how to know if your child’s backpack is too heavy, and how to lighten their load. — Cheyanne Mumphrey, Fortune, 4 Aug. 2026 Wondering how to lighten your hair without bleach is a common musing among hair dye enthusiasts. — Audrey Noble, Vogue, 28 July 2026 Historic ceiling beams were painted white to lighten the atmosphere, while high-gloss wood paneling pairs with handblown glass light fixtures from Vetreria Venier in Murano. — Abby Montanez, Robb Report, 25 July 2026 See All Example Sentences for lighten

Recent Examples of Synonyms for lighten

Verb

Hydrolyzed hyaluronic acid delivers hydration and keeps skin smooth and glowing, plus there’s niacinamide and licorice extract to brighten and even the complexion.

— Celia Shatzman, Forbes.com, 18 Aug. 2026
The second helps minimize fine lines and wrinkles, a new attribute to the serum whose primary function has been to brighten and hydrate the skin.

— Maggie Ryan, Flow Space, 17 Aug. 2026

Definition of brighten

Verb

Fantastic, illumined by periodic excursions into surrealism, as when the crew of a mysterious UFO boards a transpacific Kahuna Airlines jet midflight.

— Los Angeles Times, Los Angeles Times, 9 Apr. 2026
Geraldine walked over to Felix and Jane’s for fish soup, through long autumn shadows in the park, haze rising like smoke from the grass, illumined by the low sun.

— Tessa Hadley, New Yorker, 25 Jan. 2026

Definition of illumine

Verb

Hal is arrested, per his plan, as John meets and sleeps with a mysterious woman, Zoe (Poorna Jagannathan), and uses Hal’s ring to light her cigarette after the fact.

— Siddhant Adlakha, Vulture, 17 Aug. 2026
But his appointment also lit a fire among a group of academics - and others - who believe Cambridge and other universities and public bodies are striving too hard to increase their diversity.

— Rupert Neate, CNN Money, 16 Aug. 2026

Definition of light

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light bulbs

lighten

lightened

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“Lighten.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/lighten. Accessed 19 Aug. 2026.

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Synonyms of lighten

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