- Definitions|2
- Thesaurus|1.6k
- Abbreviations|0
108 entries under substantial topic. ×
| relevant(adjective, clear, importance, big, significant) | |
| urgent(adjective, clear, tough, severe, big) | |
| distinguished(adjective, bad, great, excellent, extraordinary) | |
| heavy(adjective, great, tough, severe, big) | |
| necessary(adjective, important, valuable, essential) | |
| pressing(adjective, tough, severe, big, heavy) | |
| primary(adjective, superior, big, unusual, important) | |
| heavyweight(adjective, big, heavy, important, outstanding) | |
| salient(adjective, solid, extraordinary, importance, big) | |
| severe(adjective, tough, big, heavy, important) | |
| bountiful(adjective, significant, large) | |
| imperative(adjective, big, important, determined, significant) | |
| large(adjective, big, significant, valuable) | |
| burdensome(adjective, big, heavy) | |
| conspicuous(adjective, great, solid, extraordinary, big) | |
| exceptional(adjective, bad, great, excellent, solid) | |
| far-reaching(adjective, severe, important, significant) | |
| fundamental(adjective, important, significant, serious) | |
| marked(adjective, great, solid, extraordinary, superior) | |
| much(significant, large) |
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| APA | Smart Define. (2016). momentous thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/momentous/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "momentous thesaurus" https://smartdefine.org/momentous/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2016, momentous thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/momentous/thesaurus/synonyms>. |
| MLA | Smart Define. "momentous thesaurus" 1 April 2016. Web. 30 September 2026. <https://smartdefine.org/momentous/thesaurus/synonyms> |