1
invariably
1
ipsissimis verbis
1
ironhandedly
1
irreconcilably
1
lastingly
1
like a rock(expression, idiom, adverb, thoroughly, strongly)
1
literally
1
literatim
1
meanly
1
motionlessly(adverb, well, severely, thoroughly, strongly)
1
mulishly(adverb, obstinately)
1
narrowly
1
nastily
1
permanently
1
perpetually
1
pertinaciously(adverb, obstinately)
1
pitilessly
1
plumb
1
point-blank
1
positively
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APASmart Define. (2015). rigidly thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/rigidly/thesaurus/synonyms
ChicagoSmart Define. 2015. "rigidly thesaurus" https://smartdefine.org/rigidly/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, rigidly thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/rigidly/thesaurus/synonyms>.
MLASmart Define. "rigidly thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/rigidly/thesaurus/synonyms>