- Definitions|0
- Thesaurus|87
- Abbreviations|0
| unwavering(adjective, intense, deliberate, determined, serious) | |
| weighty(adjective, thoughtful, sober, serious, sincere) | |
| be deadly serious | |
| be determined | |
| be serious | |
| calculated(intense, deliberate, determined, resolute, focused) | |
| deep(adjective, sober, serious, solemn) | |
| deliberate(intense, determined, resolute, focused) | |
| focused(determined, resolute) | |
| grave(adjective, thoughtful, sober, serious, sincere) | |
| gritty | |
| hard as nails(expression, adjective, idiom, determined, serious) | |
| heroic | |
| indomitable | |
| inexorable(adjective, cruel, pitiless) | |
| mean it | |
| mean what you say | |
| no-nonsense(adjective, thoughtful, sober, serious, sincere) | |
| not be joking | |
| positive(intense, deliberate, determined, resolute, focused) |
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| APA | Smart Define. (2015). mean business thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/mean_business/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "mean business thesaurus" https://smartdefine.org/mean_business/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2015, mean business thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/mean_business/thesaurus/synonyms>. |
| MLA | Smart Define. "mean business thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/mean_business/thesaurus/synonyms> |