- Definitions|1
- Thesaurus|1.6k
- Abbreviations|0
164 entries under adjective topic. ×
| authoritarian(strong, hard, tough, severe) | |
| bitter(strong, hard, tough, severe) | |
| by the book(expression, idiom, strong, hard) | |
| commonsense(hard, sound, reasonable, sensible) | |
| cruel(strong, hard, tough, severe) | |
| disciplinary(strong, hard, tough, severe) | |
| dyed-in-the-wool(strong, hard, tough, severe) | |
| flinty(strong, hard, tough, severe) | |
| forbidding(strong, hard, tough, severe) | |
| frowning(strong, hard, tough, severe) | |
| hang-tough(strong, hard, tough, severe) | |
| hanging(determined, resolute, obstinate, uncompromising) | |
| hard-core(strong, hard, tough, severe) | |
| hard-line(strong, hard, tough, severe) | |
| hard-shell(strong, hard, tough, severe) | |
| hard and fast(expression, idiom, inflexible, unbending) | |
| hardboiled(reasonable, firm, sensible, sober) | |
| incompliant | |
| mortified(strong, hard, tough, severe) | |
| mundane(reasonable, sensible, rational, straightforward) |
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| APA | Smart Define. (2015). hardheaded thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/hardheaded/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "hardheaded thesaurus" https://smartdefine.org/hardheaded/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, hardheaded thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/hardheaded/thesaurus/synonyms>. |
| MLA | Smart Define. "hardheaded thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/hardheaded/thesaurus/synonyms> |