63 entries under difficult topic. ×

43
stubborn(adjective, characteristic, quality, obstinate, stubbornness)
32
intractable(adjective, control, order, tough, difficulty)
29
unruly(adjective, control, order, resist)
29
recalcitrant(adjective, control, order, tough)
24
ungovernable(adjective, control, order, resist)
23
unmanageable(adjective, control, order, hard, tough)
19
contrary(adjective, tough, cross, wild)
15
wayward(adjective, tough, violent, wild)
14
self-willed(adjective, tough, firm, wild)
11
mulish(adjective, tough, firm, determined)
10
uncooperative(adjective, tough, wild, awkward)
10
obdurate(adjective, tough, firm, determined)
10
tenacious(adjective, tough, firm, wild)
8
pertinacious(adjective, tough, firm, determined)
7
pigheaded(adjective, tough, firm, determined)
7
undisciplined(adjective, control, order, resist)
7
wild(adjective, control, order, tough)
6
immovable(adjective, tough, firm, determined)
6
incompliant(adjective, hard, tough, firm)
6
indocile(adjective, control, order, tough)
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APASmart Define. (2015). refractory thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/refractory/thesaurus/synonyms
ChicagoSmart Define. 2015. "refractory thesaurus" https://smartdefine.org/refractory/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, refractory thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/refractory/thesaurus/synonyms>.
MLASmart Define. "refractory thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/refractory/thesaurus/synonyms>