2
severely
2
slap
2
smack
2
starkly
2
sternly
2
stiff
2
stonily(adverb, tenaciously)
2
stubbornly(adverb, tenaciously)
2
sturdily
2
tautly(adverb, tightly)
2
tenaciously(adverb, tenaciously)
2
tensely(adverb, tightly)
1
achingly
1
adamantly
1
affluently
1
arduously
1
arthritically
1
austerely
1
bang
1
boldly(adverb, tenaciously)
11 years ago|6.4k views|share |citing 
APASmart Define. (2015). stiffly thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/stiffly/thesaurus/synonyms
ChicagoSmart Define. 2015. "stiffly thesaurus" https://smartdefine.org/stiffly/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, stiffly thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/stiffly/thesaurus/synonyms>.
MLASmart Define. "stiffly thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/stiffly/thesaurus/synonyms>