222 entries under tough topic. ×
| in the pink(expression, idiom, strong, fit) | |
| incorruptible(adjective, close, strong, correct) | |
| insensible(adjective, strong, hard, sturdy) | |
| iron-fisted(adjective, severe, harsh, rigid) | |
| locked in(expression, adjective, secure, determined) | |
| lusty(strong, fit, solid, fresh) | |
| mean(adjective, clear, hard, severe) | |
| no-nonsense(adjective, severe, harsh, thoughtful) | |
| oppressive(adjective, severe, harsh, cruel) | |
| perdurable(calm, strong, steady, even) | |
| physically fit(expression, strong, fit, fresh) | |
| rosy-cheeked(strong, fit, fresh, well) | |
| sad(adjective, difficulty, obsolete) | |
| safe and sound(expression, adjective, idiom, strong) | |
| scrupulous(adjective, close, correct, severe) | |
| self-willed(determined, fixed, inflexible, obstinate) | |
| square(adjective, severe, honest, harsh) | |
| straight(adjective, close, correct, severe) | |
| strait-laced(adjective, severe, harsh, solid) | |
| stringent(adjective, set, hard, severe) |
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| APA | Smart Define. (2016). firm thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/firm/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "firm thesaurus" https://smartdefine.org/firm/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2016, firm thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/firm/thesaurus/synonyms>. |
| MLA | Smart Define. "firm thesaurus" 31 March 2016. Web. 29 September 2026. <https://smartdefine.org/firm/thesaurus/synonyms> |