Thesaurus
Synonyms & Antonyms of harden
1
to become physically firm or solid
- the glue begins to harden as soon as it is exposed to air
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2
to make able to withstand physical hardship, strain, or exposure
- pioneer women who had been hardened by years of living on the plains
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3
to increase the ability of (as a muscle) to exert physical force
- arm muscles that were hardened by all the years of casting and hauling his fishing nets
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4
to make more harsh, uncompromising, or severe
- the government hardened restrictions on travel to and from the war-torn nation
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Merriam-Webster unabridged
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Time Traveler for harden
The first known use of harden was in the 13th century
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