Synonyms|804Antonyms|109|Broader|18Narrower|40Related|457

97 entries under toughen topic. ×

1
set up(verb, expression, phrasal verb, support, increase)
1
sinew(verb, support, increase, establish, extend)
1
step up(verb, expression, support, increase, establish)
1
substantiate(verb, support, increase, establish, extend)
1
tone up(verb, expression, support, increase, establish)
1
wax(verb, support, increase, establish, extend)
0
buck up(expression, stimulate, strengthen, refresh, revitalize)
0
cheer(encourage, restore, strengthen, hearten)
0
desensitize(verb, coarsen)
0
embolden(encourage, restore, strengthen, hearten)
0
encourage(restore, strengthen, hearten)
0
expand(swell, condense, thicken, congeal)
0
grit teeth(expression, strengthen)
0
hearten(encourage, restore, strengthen)
0
make stronger(verb, expression, support, powerful, strengthen)
0
prepare oneself(expression, strengthen)
0
swell(expand, condense, thicken, congeal)
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APASmart Define. (2016). harden thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/harden/thesaurus/synonyms
ChicagoSmart Define. 2016. "harden thesaurus" https://smartdefine.org/harden/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2016, harden thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/harden/thesaurus/synonyms>.
MLASmart Define. "harden thesaurus" 24 March 2016. Web. 1 October 2026. <https://smartdefine.org/harden/thesaurus/synonyms>