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Definition of hardener

hardener

/ˈhɑːrdnər/
hard · en · er
Plural:hardeners
•
Adjective:hard
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hardener Lexical Profile

hardener Game Scores & Validity

• noun

1

A chemical substance or additive mixed with another material—such as epoxy resin, paint, varnish, concrete, or photographic gelatin—to promote curing, solidification, or increased durability.

Example

"Before applying the fiberglass coating, the technician carefully measured equal parts of the epoxy resin and the hardener."

2

A skilled metalworker or industrial technician who treats steel or other metals—typically by heating and quenching—to increase their hardness and wear resistance.

Example

"The veteran hardener inspected the tempered steel blades to ensure they met the factory's strict metallurgical standards."

Synonyms
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Antonyms
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• Rhymes for hardener

• Nearby Words

harden
hardenbergia
hardened
hardener
hardhat
hardhead catfish
hardheaded

Cite this Entry

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