- Definitions|2
- Thesaurus|824
- Abbreviations|0
186 entries under adjective topic. ×
| unforgiving(rocky, pebbly) | |
| unrelenting(close, strong, hard, tough) | |
| dense(strong, hard, tough, solid) | |
| dour | |
| immovable(strong, hard, tough, sturdy) | |
| inexorable(close, strong, hard, tough) | |
| inhuman(evil, nasty, harsh, vicious) | |
| insensitive | |
| rough(strong, hard, tough, serious) | |
| rugged(strong, hard, tough, harsh) | |
| steadfast | |
| uncompromising | |
| austere(strong, hard, tough, severe) | |
| barbarous(evil, nasty, harsh, vicious) | |
| brutish(evil, nasty, harsh, vicious) | |
| concrete | |
| determined | |
| forbidding(close, strong, hard, tough) | |
| hard-core(strong, hard, tough, severe) | |
| hard as nails(expression, idiom, strong, hard) |
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| APA | Smart Define. (2015). flinty thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/flinty/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "flinty thesaurus" https://smartdefine.org/flinty/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, flinty thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/flinty/thesaurus/synonyms>. |
| MLA | Smart Define. "flinty thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/flinty/thesaurus/synonyms> |