Synonyms|68Antonyms|2|Broader|0Narrower|6Related|6

44 entries under toughen topic. ×

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heighten(verb, powerful, fortify, brace, reinforce)
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increase(verb, powerful, fortify, brace, reinforce)
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invigorate(verb, powerful, fortify, brace, reinforce)
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justify(verb, powerful, fortify, brace, reinforce)
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make firm(verb, expression, powerful, fortify, brace)
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mount(verb, powerful, fortify, brace, reinforce)
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multiply(verb, powerful, fortify, brace, reinforce)
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regenerate(verb, powerful, fortify, brace, reinforce)
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reinforce(verb, support, powerful, strengthen, fortify)
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rejuvenate(verb, powerful, fortify, brace, reinforce)
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renew(verb, powerful, fortify, brace, reinforce)
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restore(verb, powerful, fortify, brace, reinforce)
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rise(verb, powerful, fortify, brace, reinforce)
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set up(verb, expression, powerful, fortify, brace)
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sinew(verb, powerful, fortify, brace, reinforce)
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steel(verb, support, powerful, strengthen, fortify)
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step up(verb, expression, support, powerful, strengthen)
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stiffen
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substantiate(verb, powerful, fortify, brace, reinforce)
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support(verb, powerful, strengthen, fortify, brace)
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APASmart Define. (2015). make stronger thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/make_stronger/thesaurus/synonyms
ChicagoSmart Define. 2015. "make stronger thesaurus" https://smartdefine.org/make_stronger/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, make stronger thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/make_stronger/thesaurus/synonyms>.
MLASmart Define. "make stronger thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/make_stronger/thesaurus/synonyms>