1
fixed(adjective, persistent, continuous, lasting, continuing)
1
flatulent
1
forever
1
frothy
1
galloped
1
gangling(adjective, great, deep, high, remote)
1
gradual(adjective, dull, moderate, low, stiff)
1
habitual(adjective, persistent, continuous, lasting, continuing)
1
hefty(big, large, grand, huge, major)
1
high(adjective, strong, great, deep, extreme)
1
hindered(adjective, dull, moderate, low, stiff)
1
huge(big, large, grand, major, considerable)
1
immeasurable(endless, infinite, boundless, incessant, ceaseless)
1
impeded(adjective, dull, moderate, low, stiff)
1
inborn(adjective, persistent, continuous, lasting, continuing)
1
inbred(adjective, persistent, continuous, lasting, continuing)
1
incessant(endless, infinite, boundless, ceaseless)
1
incurable(adjective, persistent, continuous, lasting, continuing)
1
indiscriminate(big, large, grand, huge, major)
1
ineradicable(adjective, persistent, continuous, lasting, continuing)
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APASmart Define. (2015). protracted thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/protracted/thesaurus/synonyms
ChicagoSmart Define. 2015. "protracted thesaurus" https://smartdefine.org/protracted/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, protracted thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/protracted/thesaurus/synonyms>.
MLASmart Define. "protracted thesaurus" 13 April 2015. Web. 21 September 2026. <https://smartdefine.org/protracted/thesaurus/synonyms>