304 entries under adjective topic. ×

1
locked(difficult, obstinate, stubborn, willful)
1
locked in(expression, tough, firm, difficult)
1
nonconforming(negative, hostile, different, adverse)
1
obsessive(persistent, obstinate, insistent, dogged)
1
pat(difficult, obstinate, stubborn, willful)
1
prejudiced
1
reserved(tough, firm, fixed, distant)
1
restricted
1
rigorous(hard, resolute, rigid, inflexible)
1
seditious
1
set in stone(expression, idiom, tough, firm)
1
shrewd(hard, tough, sharp, sensible)
1
solid
1
standing pat(expression, tough, firm, distant)
1
staunch(set, hard, stiff, resolute)
1
stormy
1
stouthearted(persistent, obstinate, insistent, dogged)
1
stringent(set, hard, stiff, rigid)
1
subversive
1
tough nut(expression, sharp, difficult, practical)
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APASmart Define. (2015). intractable thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/intractable/thesaurus/synonyms
ChicagoSmart Define. 2015. "intractable thesaurus" https://smartdefine.org/intractable/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, intractable thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/intractable/thesaurus/synonyms>.
MLASmart Define. "intractable thesaurus" 24 June 2015. Web. 25 September 2026. <https://smartdefine.org/intractable/thesaurus/synonyms>