83 entries under verb topic. ×

15
toughened(noun, adjective, set, hard)
14
tempered(adjective, strengthened)
13
set(adjective, hard, tough, firm)
12
solidified(adjective, set, hard, tough)
7
stiffened
7
strengthened(adjective, set, strengthened)
7
trained(adjective, skilled, experienced, seasoned)
6
annealed(adjective, hard, firm, solid)
6
indurated(adjective, hard, cool, firm)
6
reinforced(adjective, fortified, strengthened)
5
congealed(adjective, set, hard, tough)
5
fortified(adjective, strengthened)
5
steeled(noun, adjective, set, strong)
5
thickened(adjective, hard, firm, solid)
4
firmed
4
jelled(adjective, hard, tough, firm)
4
petrified(adjective, set, hard, firm)
3
braced
3
coagulated(adjective, congealed)
3
consolidated(adjective, set, strong, hard)
10 years ago|17k views|share |citing 
APASmart Define. (2016). hardened thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/hardened/thesaurus/synonyms
ChicagoSmart Define. 2016. "hardened thesaurus" https://smartdefine.org/hardened/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, hardened thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/hardened/thesaurus/synonyms>.
MLASmart Define. "hardened thesaurus" 29 March 2016. Web. 24 September 2026. <https://smartdefine.org/hardened/thesaurus/synonyms>