Synonyms|827Antonyms|121|Broader|4Narrower|7Related|531

63 entries under persistent topic. ×

7
severe(adjective, tough, reserved, obstinate)
6
cantankerous(adjective, tough, firm, difficult)
6
froward(adjective, determined, negative, hostile)
6
relentless(adjective, appearance, strong, tough, firm)
6
set(adjective, strict, obstinate, stubborn)
6
tenacious(adjective, tough, firm, difficult)
6
uncompliant(adjective, tough, firm, unreasonable, irritable)
6
unregenerate(adjective, obstinate, insistent, dogged)
6
unrelenting(adjective, appearance, strong, tough, firm)
5
bloody-minded(adjective, obstinate, insistent, dogged)
5
narrow-minded(adjective, obstinate, insistent, dogged)
5
stern(adjective, appearance, terrible, obstinate)
4
cussed(tough, firm, obstinate, stubborn)
4
grim(adjective, appearance, tough, firm, cruel)
4
resolved(adjective, determined, fixed, obstinate)
4
single-minded(adjective, tough, firm, unreasonable, grim)
4
steadfast(adjective, determined, fixed, grim)
4
strict(adjective, hard, rigid, obstinate)
4
unconquerable(adjective, obstinate, insistent, dogged)
4
unflinching(adjective, cruel, determined, fixed, resolute)
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APASmart Define. (2015). intractable thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/intractable/thesaurus/synonyms
ChicagoSmart Define. 2015. "intractable thesaurus" https://smartdefine.org/intractable/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, intractable thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/intractable/thesaurus/synonyms>.
MLASmart Define. "intractable thesaurus" 24 June 2015. Web. 21 September 2026. <https://smartdefine.org/intractable/thesaurus/synonyms>