- 1. a. Of moment or consequence; very important; weighty; as, a momentous decision; momentous affairs. Source: opted
- 2. adj. of very great significance Source: wordnet
- 3. Of moment or consequence; very important; weighty; as, a momentous decision; momentous affairs. -- Mo*men"tous*ly, adv. -- Mo*men"tous*ness, n. Source: webster
- 4. Of moment or consequence; very important; weighty; as, amomentous decision; momentous affairs.-- Mo*men"tous*ly, adv.-- Mo*men"tous*ness, n. Source: adambom
- 5. j:100 s. of very great significance Source: ecdict
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