Synonyms|57Antonyms|4|Broader|0Narrower|0Related|19
1
energizing(verb, strengthening)
1
enlivening(verb, strengthening)
1
invigorating(verb, strengthening)
1
ossifying
1
petrification
1
petrifying
1
propping(verb, strengthening)
1
roughening
1
sclerosis
1
seasoning
1
setting
1
solidification
1
steeling
1
tightening
1
toughen
1
toughened
1
vivifying(verb, strengthening)
0
acclimatisation
0
acclimatization
0
brutalizing
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APASmart Define. (2015). toughening thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/toughening/thesaurus/synonyms
ChicagoSmart Define. 2015. "toughening thesaurus" https://smartdefine.org/toughening/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, toughening thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/toughening/thesaurus/synonyms>.
MLASmart Define. "toughening thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/toughening/thesaurus/synonyms>