- Definitions|1
- Thesaurus|270
- Abbreviations|0
51 entries under persistent topic. ×
| severe(adjective, strong, hard, tough, serious) | |
| hard-line(adjective, strong, hard, tough, serious) | |
| inveterate(adjective, continue, obstinate, insistent) | |
| relentless(adjective, strong, hard, tough, severe) | |
| rigid(adjective, strong, hard, tough, severe) | |
| set(adjective, continue, obstinate, insistent) | |
| stern(adjective, severe, serious, unsympathetic) | |
| confirmed(adjective, continue, obstinate, insistent) | |
| contrary(adjective, determined, impulsive, obstinate) | |
| cussed(adjective, severe, sharp, nasty) | |
| determined(adjective, impulsive, obstinate, insistent) | |
| firm(adjective, strong, hard, tough, severe) | |
| froward(adjective, impulsive, obstinate, heedless) | |
| indomitable(adjective, strong, hard, tough) | |
| inexorable(adjective, strong, hard, tough) | |
| intractable(adjective, determined, impulsive, obstinate) | |
| refractory(adjective, determined, impulsive, obstinate) | |
| strict(adjective, strong, hard, tough, severe) | |
| ungovernable(adjective, determined, impulsive, obstinate) | |
| unruly(adjective, determined, impulsive, obstinate) |
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| APA | Smart Define. (2013). hard-shell thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/hard-shell/thesaurus/synonyms |
| Chicago | Smart Define. 2013. "hard-shell thesaurus" https://smartdefine.org/hard-shell/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2013, hard-shell thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/hard-shell/thesaurus/synonyms>. |
| MLA | Smart Define. "hard-shell thesaurus" 17 June 2013. Web. 20 September 2026. <https://smartdefine.org/hard-shell/thesaurus/synonyms> |