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momentous

[moh-men-tuh s] /moʊˈmɛn təs/
adjective
1.
of great or far-reaching importance or consequence:
a momentous day.
Origin
1645-1655
1645-55; moment + -ous
Related forms
momentously, adverb
momentousness, noun
unmomentous, adjective
unmomentously, adverb
unmomentousness, noun
Synonyms
vital, critical, crucial, serious. See heavy.
Antonyms
trivial, trifling.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for momentous
  • These thoughts concern themselves only with things that seem important and of momentous interest to us.
  • The momentous event would clear away the trivia and throw my life into proper perspective.
  • The end of the fiscal year usually isn't a momentous occasion for colleges.
  • So it is a momentous thing to contemplate the return of inflation, however mild, by the year's end.
  • The fascinating story of a single momentous day in our country's history.
  • Few things stand out in modern human history that are as momentous.
  • But in more momentous ways, the president was facing serious disadvantages, some of his own making.
  • Things that ought to be easy and even pleasurable turn into momentous tasks.
  • One such period of momentous change is now facing the world's airline industry.
  • Illuminates a momentous time of technical advancement.
British Dictionary definitions for momentous

momentous

/məʊˈmɛntəs/
adjective
1.
of great significance
Derived Forms
momentously, adverb
momentousness, noun
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
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Word Origin and History for momentous
adj.

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
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