164 entries under adjective topic. ×

1
authoritarian(strong, hard, tough, severe)
1
bitter(strong, hard, tough, severe)
1
by the book(expression, idiom, strong, hard)
1
commonsense(hard, sound, reasonable, sensible)
1
cruel(strong, hard, tough, severe)
1
disciplinary(strong, hard, tough, severe)
1
dyed-in-the-wool(strong, hard, tough, severe)
1
flinty(strong, hard, tough, severe)
1
forbidding(strong, hard, tough, severe)
1
frowning(strong, hard, tough, severe)
1
hang-tough(strong, hard, tough, severe)
1
hanging(determined, resolute, obstinate, uncompromising)
1
hard-core(strong, hard, tough, severe)
1
hard-line(strong, hard, tough, severe)
1
hard-shell(strong, hard, tough, severe)
1
hard and fast(expression, idiom, inflexible, unbending)
1
hardboiled(reasonable, firm, sensible, sober)
1
incompliant
1
mortified(strong, hard, tough, severe)
1
mundane(reasonable, sensible, rational, straightforward)
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APASmart Define. (2015). hardheaded thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/hardheaded/thesaurus/synonyms
ChicagoSmart Define. 2015. "hardheaded thesaurus" https://smartdefine.org/hardheaded/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, hardheaded thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/hardheaded/thesaurus/synonyms>.
MLASmart Define. "hardheaded thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/hardheaded/thesaurus/synonyms>