190 entries under fixed topic. ×
| piercing(adjective, determined, resolute, absorbed) | |
| preoccupied(adjective, determined, resolute, absorbed) | |
| rapt(adjective, absorbed, concentrated, focused) | |
| reserved(adjective, tough, solid, stable) | |
| restive(determined, stubborn) | |
| serene(adjective, solid, stable, sturdy) | |
| serious-minded(adjective, solid, stable, sturdy) | |
| sharp(adjective, harsh, cruel, brutal) | |
| steady-going(adjective, solid, stable, sturdy) | |
| wrong-headed(determined, stubborn) |
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| APA | Smart Define. (2016). firm thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/firm/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "firm thesaurus" https://smartdefine.org/firm/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, firm thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/firm/thesaurus/synonyms>. |
| MLA | Smart Define. "firm thesaurus" 31 March 2016. Web. 23 September 2026. <https://smartdefine.org/firm/thesaurus/synonyms> |