- Definitions|0
- Thesaurus|79
- Abbreviations|0
| far-reaching(important, significant, historic) | |
| festive | |
| gala | |
| glorious | |
| grand | |
| grave(important, significant, historic) | |
| heavenly | |
| heavy(important, significant, historic) | |
| life and death(expression, adjective, idiom, earthshaking) | |
| life or death(expression, adjective, idiom, important, serious) | |
| lovely | |
| magnificent | |
| major | |
| marvellous | |
| material(important, significant, historic) | |
| mind-boggling | |
| notable(important, significant, historic) | |
| of vital importance(expression, adjective, idiom, important, serious) | |
| ominous | |
| overpowering |
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| APA | Smart Define. (2013). earth-shaking thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/earth-shaking/thesaurus/synonyms |
| Chicago | Smart Define. 2013. "earth-shaking thesaurus" https://smartdefine.org/earth-shaking/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2013, earth-shaking thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/earth-shaking/thesaurus/synonyms>. |
| MLA | Smart Define. "earth-shaking thesaurus" 18 May 2013. Web. 28 September 2026. <https://smartdefine.org/earth-shaking/thesaurus/synonyms> |