3
resolutely(adverb, obstinately)
2
hardheadedly(adverb, obstinately)
2
inflexibly(adverb, obstinately)
2
mulishly(adverb, obstinately)
2
obstinately(adverb, obstinately)
2
stubbornly(adverb, obstinately)
2
tenaciously(adverb, obstinately)
2
unyieldingly(adverb, obstinately)
1
adamantly(adverb, obstinately)
1
boldly
1
contrarily(adverb, obstinately)
1
contumaciously
1
daringly
1
diligently
1
doggedly
1
faithfully
1
gamely
1
heroically
1
importunately
1
industriously
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APASmart Define. (2015). pertinaciously thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/pertinaciously/thesaurus/synonyms
ChicagoSmart Define. 2015. "pertinaciously thesaurus" https://smartdefine.org/pertinaciously/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, pertinaciously thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/pertinaciously/thesaurus/synonyms>.
MLASmart Define. "pertinaciously thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/pertinaciously/thesaurus/synonyms>