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

98 entries under strict topic. ×

8
cold(adjective, mean, hard, cool, tough)
8
cruel(adjective, mean, strong, hard, cool)
8
dour(adjective, close, hard, tough, severe)
8
ruthless(adjective, mean, hard, tough, severe)
7
persevering(adjective, strong, tough, flat, firm)
7
thick-skinned(adjective, hard, tough, severe, harsh)
6
staunch(adjective, strong, tough, flat, firm)
5
exacting(adjective, hard, tough, severe, rough)
5
single-minded(adjective, tough, firm, harsh, cruel)
5
stringent(adjective, tough, severe, harsh, cruel)
5
unsparing(adjective, close, strong, hard, tough)
4
brutal(adjective, mean, hard, tough, severe)
3
acrimonious(adjective, tough, severe, harsh, cruel)
3
indomitable(adjective, strong, hard, tough, difficult)
3
strong(adjective, hard, tough, flat, firm)
3
undeviating(adjective, strong, flat, harsh, certain)
3
unflinching(adjective, strong, flat, harsh, certain)
2
astringent(adjective, close, strong, hard, tough)
2
bleak(adjective, tough, severe, harsh, cruel)
2
bound(adjective, strong, tough, flat, firm)
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APASmart Define. (2016). obdurate thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/obdurate/thesaurus/synonyms
ChicagoSmart Define. 2016. "obdurate thesaurus" https://smartdefine.org/obdurate/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, obdurate thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/obdurate/thesaurus/synonyms>.
MLASmart Define. "obdurate thesaurus" 23 March 2016. Web. 26 September 2026. <https://smartdefine.org/obdurate/thesaurus/synonyms>