4 entries under rigidly topic. ×

12
rigidly(adverb, well, thoroughly, strongly, firmly)
9
firmly(adverb, severely, strongly, definitely, sharply)
5
solidly(adverb, severely, thoroughly, strongly, firmly)
3
callously
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APASmart Define. (2015). stiffly thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/stiffly/thesaurus/synonyms
ChicagoSmart Define. 2015. "stiffly thesaurus" https://smartdefine.org/stiffly/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, stiffly thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/stiffly/thesaurus/synonyms>.
MLASmart Define. "stiffly thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/stiffly/thesaurus/synonyms>