Synonyms|576Antonyms|83|Broader|17Narrower|5Related|326
1
encrust
1
endure
1
energise
1
enlarge(verb, support, increase, swell, sustain)
1
entrench(verb, place, set, secure, settle)
1
feed(verb, keep, maintain, encourage, raise)
1
finance(verb, keep, maintain, encourage, raise)
1
firming(verb, close, contract, compact, brace)
1
fossilize(verb, close, set, fix, settle)
1
foster(verb, keep, maintain, encourage, raise)
1
freeze to(verb, expression, place, set, secure)
1
frost(freeze, chill, harden, solidify, ice)
1
fund(verb, keep, maintain, encourage, raise)
1
galvanise
1
galvanize
1
gelate(verb, form, set, fix, develop)
1
gelatinate(set, freeze, thicken, coagulate, clot)
1
gelatinize(verb, form, set, fix, develop)
1
generate
1
give
For more, visit Stiffen on Power Thesaurus
11 years ago|7.2k views|share |citing 
APASmart Define. (2015). stiffen thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/stiffen/thesaurus/synonyms
ChicagoSmart Define. 2015. "stiffen thesaurus" https://smartdefine.org/stiffen/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, stiffen thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/stiffen/thesaurus/synonyms>.
MLASmart Define. "stiffen thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/stiffen/thesaurus/synonyms>