Synonyms|510Antonyms|157|Broader|15Narrower|0Related|338

83 entries under harden topic. ×

1
fossilize(verb, close, set, fix, settle)
1
gelate(verb, form, set, fix, develop)
1
gird(verb, close, set, fix, settle)
1
indurate(verb, close, set, fix, settle)
1
nerve(noun, verb, close, set, fix)
1
press(verb, close, set, fix, settle)
1
prop(verb, strengthen, reinforce, stabilize)
1
steady(verb, place, set, secure, settle)
1
steel(verb, close, set, fix, settle)
1
temper(verb, close, set, fix, settle)
1
toughen(verb, close, set, fix, settle)
1
vitrify(verb, close, set, fix, settle)
0
become firm(verb, expression, fix, solidify)
0
become hard(verb, expression, solidify)
0
benumb(verb, strengthen, reinforce, stabilize)
0
blunt(verb, toughen, season, roughen)
0
casehardened(close, set, firm, dry)
0
chill(verb, strengthen, reinforce, stabilize)
0
dull(verb, toughen, season, roughen)
0
get hard(verb, expression, set, freeze)
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ChicagoSmart Define. 2015. "thicken thesaurus" https://smartdefine.org/thicken/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, thicken thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/thicken/thesaurus/synonyms>.
MLASmart Define. "thicken thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/thicken/thesaurus/synonyms>