- Definitions|1
- Thesaurus|219
- Abbreviations|0
121 entries under adjective topic. ×
| uncompromising(tough, firm, difficult, rigid) | |
| inflexible(strong, hard, tough, severe) | |
| rigid(strong, hard, tough, severe) | |
| stern(hard, tough, severe, rough) | |
| unyielding(strong, hard, tough, severe) | |
| hardline | |
| strict(strong, hard, tough, severe) | |
| inexorable(strong, hard, tough, firm) | |
| tough(strong, hard, rough, firm) | |
| adamant(strong, hard, tough, rough) | |
| firm(strong, hard, tough, severe) | |
| hard-shell(strong, hard, tough, serious) | |
| hard-shelled(hard, tough, severe, rough) | |
| indomitable(strong, hard, tough, difficult) | |
| intractable(tough, firm, difficult, persistent) | |
| relentless(strong, hard, tough, firm) | |
| severe(strong, hard, tough, rough) | |
| steadfast(firm, persistent, obstinate, insistent) | |
| exacting(persistent, obstinate, insistent, dogged) | |
| hard-boiled(strong, hard, tough, severe) |
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| APA | Smart Define. (2015). hard-line thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/hard-line/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "hard-line thesaurus" https://smartdefine.org/hard-line/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, hard-line thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/hard-line/thesaurus/synonyms>. |
| MLA | Smart Define. "hard-line thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/hard-line/thesaurus/synonyms> |