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Definition of brightener

brightener

/ˈbraɪt.nər/
bright · en · er
Plural:brighteners
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brightener Lexical Profile

brightener Game Scores & Validity

• noun

1

A chemical agent or cosmetic product added to fabrics, paper, hair, or skin to make them appear lighter, whiter, or more luminous.

Example

"Most modern laundry detergents contain an optical brightener to keep white clothes looking fresh."

2

A person or thing that brings cheer, liveliness, or optimism to a situation.

Example

"Her warm smile was a real mood brightener during the long, rainy afternoon at the office."

Synonyms
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Antonyms
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• Rhymes for brightener

• Nearby Words

briggs
bright
brighten
brightener
brightish
brightly
brightness

Cite this Entry

Wordmom. (2026). Definition of Brightener. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/brightener
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