hardener

noun

hard·​en·​er ˈhärd-nər How to pronounce hardener (audio)
ˈhär-dᵊn-ər
: one that hardens
especially : a substance added (as to a paint or varnish) to harden the film

Examples of hardener in a Sentence

Recent Examples on the Web
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.
Nail hardeners, cuticle moisturizers, base coats, and protective polish are all nail treatments that are easy to use and even can be formulated to treat specific issues, such as repairing brittle nails from UV gel damage, improving the nails’ surface and texture, and more. Catharine Malzahn, Glamour, 3 Apr. 2025 Start with a two-part clear resin kit that includes one bottle of resin and one bottle of hardener. Emily Vanschmus, Better Homes & Gardens, 30 Jan. 2023 Mix the consolidator, which comes as two liquids (resin and hardener) in the proportion recommended on the label. Jeanne Huber, Washington Post, 13 Jan. 2023 This China Glaze color features China Clay which acts as a nail hardener. Jamie Wilson, Harper's BAZAAR, 28 Dec. 2022 See All Example Sentences for hardener

Word History

First Known Use

1598, in the meaning defined above

Time Traveler
The first known use of hardener was in 1598

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Cite this Entry

“Hardener.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hardener. Accessed 16 Apr. 2025.

Last Updated: - Updated example sentences
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