2
unflexible(adjective, tough, firm, fixed, distant)
2
ungiving
2
unmoved(adjective, determined, fixed, stubborn)
2
unmoving
2
unsentimental
2
untamed
2
untractable
1
adverse(unpleasant, negative, hostile, different, unfortunate)
1
aloof(adjective, tough, firm, fixed, rigid)
1
anal-retentive(adjective, persistent, obstinate, insistent, dogged)
1
antagonistic opposite(expression, negative, hostile, different, adverse)
1
anti(negative, hostile, different, adverse, conflicting)
1
antipathetic(negative, hostile, different, adverse, conflicting)
1
antipodal(negative, hostile, different, adverse, conflicting)
1
antipodean(negative, hostile, different, adverse, conflicting)
1
antithetical(negative, hostile, different, adverse, conflicting)
1
arbitrary
1
astute(adjective, hard, tough, sharp, sensible)
1
athwart
1
balking
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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>