Synonyms|225Antonyms|6|Broader|4Narrower|0Related|84

43 entries under toughen topic. ×

1
tone up(verb, expression, support, increase, establish)
1
wax(verb, support, increase, establish, extend)
0
make stronger(verb, expression, powerful, fortify, brace)
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APASmart Define. (2015). anneal thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/anneal/thesaurus/synonyms
ChicagoSmart Define. 2015. "anneal thesaurus" https://smartdefine.org/anneal/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2015, anneal thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/anneal/thesaurus/synonyms>.
MLASmart Define. "anneal thesaurus" 13 April 2015. Web. 1 October 2026. <https://smartdefine.org/anneal/thesaurus/synonyms>