- Definitions|2
- Thesaurus|899
- Abbreviations|0
285 entries under adjective topic. ×
| valorous(strong, tough, determined, vigorous) | |
| willful(strong, tough, difficult, awkward) | |
| abiding | |
| adamantine(set, strong, hard, tough) | |
| anal-retentive(persistent, obstinate, insistent, dogged) | |
| authoritarian(strong, hard, tough, sturdy) | |
| bloody-minded(persistent, obstinate, insistent, dogged) | |
| coming on strong(expression, idiom, bold, brave) | |
| committed | |
| confirmed(persistent, obstinate, insistent, dogged) | |
| continued(strong, firm, determined, steady) | |
| cool(calm, strong, tough, bold) | |
| cussed(persistent, obstinate, insistent, dogged) | |
| deliberate | |
| demanding(persistent, obstinate, insistent, dogged) | |
| disobedient(persistent, obstinate, insistent, dogged) | |
| dyed-in-the-wool(set, strong, hard, tough) | |
| exacting(persistent, obstinate, insistent, dogged) | |
| fervent | |
| fire-eating(strong, tough, noble, bold) |
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| APA | Smart Define. (2015). indomitable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/indomitable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "indomitable thesaurus" https://smartdefine.org/indomitable/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, indomitable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/indomitable/thesaurus/synonyms>. |
| MLA | Smart Define. "indomitable thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/indomitable/thesaurus/synonyms> |