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

178 entries under tough topic. ×

4
brutal(adjective, mean, hard, severe)
4
cold-hearted(adjective, hard, severe, attitude)
4
icy(adjective, mean, hard, cool)
4
insensate(adjective, hard, severe, careless)
4
unmerciful(adjective, mean, hard, harsh)
3
acrimonious(adjective, severe, harsh, cruel)
3
apathetic(adjective, person, mean, hard, cool)
3
balky(firm, unreasonable, grim, inflexible)
3
dense(adjective, strong, hard, sturdy)
3
indomitable(adjective, strong, hard, difficult)
3
rebellious(adjective, firm, unreasonable, grim)
3
strong(adjective, hard, flat, firm)
3
uncaring(adjective, mean, hard, cool)
3
unruly(difficult, wild, obstinate, stubborn)
2
aloof(adjective, mean, hard, cool)
2
asleep(adjective, hard, severe, cold)
2
astringent(adjective, close, strong, hard)
2
benumbed(adjective, hard, severe, cold)
2
bleak(adjective, severe, harsh, cruel)
2
bound(adjective, strong, flat, firm)
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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>