155 entries under persistent topic. ×
| hard-as-nails(adjective, serious, resolute, unwavering) | |
| hard-line(adjective, obstinate, insistent, dogged) | |
| hard-shell(adjective, obstinate, insistent, dogged) | |
| hard-shelled(adjective, obstinate, insistent, dogged) | |
| hard as nails(expression, adjective, idiom, tough, firm) | |
| hardboiled(adjective, serious, resolute, unwavering) | |
| harsh(adjective, cruel, determined, fierce) | |
| immobile(adjective, intense, cruel, resolute) | |
| inhuman(adjective, harsh, cruel, determined, fierce) | |
| insurgent(adjective, obstinate, insistent, dogged) | |
| intense(adjective, firm, sensible, solid, deliberate) | |
| inveterate(adjective, obstinate, insistent, dogged) | |
| liege(adjective, firm, sensible, solid, intense) | |
| mean business(expression, adjective, intense, deliberate, cruel) | |
| merciless(adjective, harsh, cruel, determined, fierce) | |
| mortal(adjective, harsh, cruel, determined, fierce) | |
| mutinous(adjective, obstinate, insistent, dogged) | |
| never-failing(adjective, firm, solid, intense, steady) | |
| on ice(expression, adjective, serious, resolute) | |
| ornery(tough, firm, unreasonable, grim) |
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| APA | Smart Define. (2015). single-minded thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/single-minded/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "single-minded thesaurus" https://smartdefine.org/single-minded/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, single-minded thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/single-minded/thesaurus/synonyms>. |
| MLA | Smart Define. "single-minded thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/single-minded/thesaurus/synonyms> |