- Definitions|2
- Thesaurus|950
- Abbreviations|0
335 entries under adjective topic. ×
| indefatigable(resolute, tenacious) | |
| irresponsible(careless, bold, rash, reckless) | |
| murder(impulsive, stubborn, reckless, impetuous) | |
| ornery(tough, firm, cross, passionate) | |
| plucky(resolute, tenacious) | |
| rogue | |
| ruthless | |
| self-opinionated(determined, resolute, uncompromising, unshakeable) | |
| single-minded(tough, firm, unreasonable, grim) | |
| staunch(resolute, tenacious) | |
| steely | |
| temperamental(unpredictable, unreliable, erratic, moody) | |
| thorough | |
| tireless(resolute, tenacious) | |
| true(resolute, tenacious) | |
| unshakeable | |
| unwavering | |
| venturous(careless, bold, thoughtless, brave) | |
| volatile(passionate, unstable, unpredictable, unreliable) | |
| willing(deliberate, determined, resolute, intentional) |
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| APA | Smart Define. (2015). headstrong thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/headstrong/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "headstrong thesaurus" https://smartdefine.org/headstrong/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, headstrong thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/headstrong/thesaurus/synonyms>. |
| MLA | Smart Define. "headstrong thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/headstrong/thesaurus/synonyms> |