MOMENTOUS
ADJECTIVES
► EARTHSHAKING of enormous importance or consequence; momentous → colloq.
► EARTH-SHATTERING of enormous importance or consequence; momentous → colloq.
► FELL grave, serious; important, momentous; strange, extraordinary → 1825 Sc.
► MOLIMINOUS weighty, momentous, of vast importance → 1684 obs.
► MOMENTAL very important, momentous → 1818 obs.
Lexicophilia 