48 entries under gel topic. ×

20
harden(verb, form, support, close, place)
5
indurate(verb, dull, close, set, fix)
5
temper(verb, close, set, fix, settle)
3
starch(verb, close, set, fix, settle)
2
vitrify(verb, close, set, fix, settle)
1
calcify(verb, close, set, fix, settle)
1
densify(verb, close, set, fix, settle)
1
firming(verb, close, contract, compact, brace)
1
fossilize(verb, close, set, fix, settle)
1
starched(verb, close, set, fix, firm)
1
steadying(verb, place, secure, establish, catch)
0
be numb(verb, hunch, jellied, tighten)
0
braze(verb, set, harden, jellied)
0
caked(verb, hunch, jellied, tighten)
0
caking(verb, hunch, jellied, tighten)
0
calcified(close, contract, compact, jellied)
0
calloused(close, set, dry, jellied)
0
candied(verb, hunch, jellied, tighten)
0
caseharden(close, set, harden, jellied)
0
casehardened(verb, dull, develop, blunt, jellied)
<123>
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APASmart Define. (2015). stiffen thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/stiffen/thesaurus/synonyms
ChicagoSmart Define. 2015. "stiffen thesaurus" https://smartdefine.org/stiffen/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, stiffen thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/stiffen/thesaurus/synonyms>.
MLASmart Define. "stiffen thesaurus" 13 April 2015. Web. 27 September 2026. <https://smartdefine.org/stiffen/thesaurus/synonyms>