417 entries under verb topic. ×

2
dull(thicken, stabilize, toughen, season)
2
endure(keep, overcome, prepare, resist)
2
enure
2
establish(support, place, set, increase)
2
form(set, develop, firm, combine)
2
gelatinize(form, set, fix, develop)
2
hook up with(expression, idiom, meet, develop)
2
jelly(form, set, develop, combine)
2
league(meet, develop, secure, join)
2
orientate(adjust, familiarize, accustom)
2
paralyze(thicken, stabilize, toughen, season)
2
precipitate(close, set, settle, firm)
2
press(close, set, settle, firm)
2
restore(support, increase, raise, strength)
2
shore up(expression, support, increase, sustain)
2
stabilize(place, set, develop, secure)
2
stun(thicken, stabilize, toughen, season)
2
stupefy(thicken, stabilize, toughen, season)
2
tame(study, develop, improve, prepare)
2
teach(study, develop, improve, prepare)
10 years ago|10k views|share |citing 
APASmart Define. (2016). harden thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/harden/thesaurus/synonyms
ChicagoSmart Define. 2016. "harden thesaurus" https://smartdefine.org/harden/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, harden thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/harden/thesaurus/synonyms>.
MLASmart Define. "harden thesaurus" 24 March 2016. Web. 29 September 2026. <https://smartdefine.org/harden/thesaurus/synonyms>