Synonyms|905Antonyms|165|Broader|8Narrower|0Related|298

178 entries under tough topic. ×

1
reserved(adjective, firm, detached, rigid)
1
rugged(adjective, strong, hard, harsh)
1
sensationless(adjective, hard, severe, cold)
1
senseless(adjective, hard, severe, cold)
1
serious(adjective, close, strong, hard)
1
sturdy(adjective, strong, hard, firm)
1
sure(adjective, strong, flat, firm)
1
surly(adjective, mean, hard, severe)
1
unamiable(adjective, hard, severe, cold)
1
uncordial(adjective, hard, severe, cold)
1
undisciplined(difficult, violent, wild, obstinate)
1
unmanageable(firm, difficult, wild, obstinate)
1
unpleasant(adjective, mean, hard, cool)
1
unpliable(difficult, obstinate, stubborn, willful)
1
unreasonable(firm, grim, inflexible, obstinate)
1
untoward(firm, unreasonable, grim, inflexible)
0
antagonistic(adjective, harsh, cruel, grim)
0
by the book(expression, adjective, idiom, strong, hard)
0
disagreeable(adjective, harsh, cruel, grim)
0
disciplinary(adjective, strong, hard, sturdy)
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ChicagoSmart Define. 2016. "obdurate thesaurus" https://smartdefine.org/obdurate/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, obdurate thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/obdurate/thesaurus/synonyms>.
MLASmart Define. "obdurate thesaurus" 23 March 2016. Web. 29 September 2026. <https://smartdefine.org/obdurate/thesaurus/synonyms>