159 entries under adjective topic. ×

1
severe(strong, hard, tough, harsh)
1
standing pat(determined, resolute, obstinate, uncompromising)
1
steely(strong, hard, tough, severe)
1
stony
1
strong(hard, tough, firm, determined)
1
sturdy(strong, hard, tough, firm)
1
thick-skinned(mean, hard, harsh, inflexible)
1
tough-nut(hard, tough, difficult, wild)
1
tough nut to crack(expression, idiom, mean, hard)
1
unadaptable
1
unappeasable(determined, resolute, uncompromising, unshakeable)
1
uncompassionate(mean, hard, harsh, inflexible)
1
uncompliant
1
unforgiving(determined, resolute, uncompromising, unshakeable)
1
unimpressible(mean, hard, harsh, inflexible)
1
unsparing(strong, hard, tough, severe)
1
unswayable(determined, resolute, obstinate, uncompromising)
1
unsympathetic(mean, hard, severe, harsh)
0
Rhadamanthine
0
dense(strong, hard, tough, stupid)
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APASmart Define. (2015). mulish thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/mulish/thesaurus/synonyms
ChicagoSmart Define. 2015. "mulish thesaurus" https://smartdefine.org/mulish/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, mulish thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/mulish/thesaurus/synonyms>.
MLASmart Define. "mulish thesaurus" 13 April 2015. Web. 27 September 2026. <https://smartdefine.org/mulish/thesaurus/synonyms>