momentous
[ moh-men-tuhs ]
/ moʊˈmɛn təs /
adjective
of great or far-reaching importance or consequence: a momentous day.
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RELATED WORDS
notable, crucial, far-reaching, historic, fateful, significant, memorable, consequential, pivotal, eventful, meaningful, decisive, weighty, big, considerable, critical, grave, heavy, material, outstanding
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Origin of momentous
SYNONYMS FOR momentous
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for momentous
momentous
/ (məʊˈmɛntəs) /
adjective
of great significance
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
momentous
1650s, from moment + -ous to carry the sense of "important" while momentary kept the meaning "of an instant of time." Related: Momentously; momentousness.
Online Etymology Dictionary, © 2010 Douglas Harper