14 entries under strengthens topic. ×

4
fortifies
4
hardens
4
reinforces
4
strengthens
4
tempers(noun, verb)
3
braces(noun, verb)
2
supports
1
buttresses
1
empowers
1
energizes
1
enlivens
1
invigorates
1
props
1
vivifies
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APASmart Define. (2013). toughens thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/toughens/thesaurus/synonyms
ChicagoSmart Define. 2013. "toughens thesaurus" https://smartdefine.org/toughens/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2013, toughens thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/toughens/thesaurus/synonyms>.
MLASmart Define. "toughens thesaurus" 17 June 2013. Web. 30 September 2026. <https://smartdefine.org/toughens/thesaurus/synonyms>