- Definitions|2
- Thesaurus|3.3k
- Abbreviations|0
85 entries under persistent topic. ×
| pitiless(adjective, severe, harsh, cruel, determined) | |
| adamant(adjective, strong, hard, tough, flat) | |
| obstinate(adjective, hard, tough, moderate, severe) | |
| ruthless(adjective, hard, rough, harsh, cruel) | |
| steadfast(adjective, close, strong, correct, flat) | |
| narrow-minded(adjective, obstinate, insistent, dogged) | |
| single-minded(adjective, tough, firm, harsh, cruel) | |
| unrelenting(adjective, strong, hard, tough, severe) | |
| confirmed(adjective, hard, rough, harsh, proper) | |
| hard-line(adjective, strong, hard, tough, severe) | |
| intractable(adjective, hard, rigid, obstinate) | |
| resolved(adjective, definite, rigid, obstinate) | |
| tenacious(adjective, obstinate, insistent, dogged) | |
| unflinching(adjective, strong, flat, harsh, certain) | |
| hard-shell(adjective, strong, hard, tough, severe) | |
| hard-shelled(adjective, hard, tough, severe, rough) | |
| indomitable(adjective, strong, hard, tough, resolute) | |
| inhuman(adjective, harsh, cruel, determined, fierce) | |
| iron(adjective, hard, rigid, obstinate) | |
| merciless(adjective, hard, rough, harsh, cruel) |
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| APA | Smart Define. (2015). strict thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/strict/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "strict thesaurus" https://smartdefine.org/strict/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, strict thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/strict/thesaurus/synonyms>. |
| MLA | Smart Define. "strict thesaurus" 3 August 2015. Web. 22 September 2026. <https://smartdefine.org/strict/thesaurus/synonyms> |