Synonyms|126Antonyms|40|Broader|0Narrower|0Related|504
8
hardened(verb, hardened)
6
solidified(verb, adjective, hardened)
6
tightened(verb, tightened)
5
firmed(verb, hardened, tightened)
5
indurated
5
ossified
5
reinforced(verb, supported)
5
toughened
4
set
4
strengthened
3
intensified
3
petrified
3
starched
3
stiff
2
accelerated
2
congealed
2
constrained
2
fixed
2
fortified
2
increased
<12345…7>
For more, visit Stiffened on Power Thesaurus
11 years ago|5.8k views|share |citing 
APASmart Define. (2015). stiffened thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/stiffened/thesaurus/synonyms
ChicagoSmart Define. 2015. "stiffened thesaurus" https://smartdefine.org/stiffened/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, stiffened thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/stiffened/thesaurus/synonyms>.
MLASmart Define. "stiffened thesaurus" 13 April 2015. Web. 21 September 2026. <https://smartdefine.org/stiffened/thesaurus/synonyms>