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Momentous vs Weighty - What's the difference?

momentous | weighty |

As adjectives the difference between momentous and weighty

is that momentous is outstanding in importance, of great consequence while weighty is having weight; heavy; ponderous; as, a weighty body.

momentous

English

Adjective

(en adjective)
  • Outstanding in importance, of great consequence.
  • * 1725 , , Everybody's Business is Nobody's Business :
    • The reason why I did not publish this book till the end of the last sessions of parliament was, because I did not care to interfere with more momentous affairs.
  • * 1831 , , Homeward Bound , ch. 31:
    • "It has been a momentous month, and I hope we shall all retain healthful recollections of it as long as we live."
  • * 1902 , , The End of the Tether , ch. 3:
    • What to the other parties was merely the sale of a ship was to him a momentous event involving a radically new view of existence.
  • * 2007 July 1, , " Inferior Design," New York Times (retrieved 19 Nov 2013):
    • Natural selection is arguably the most momentous idea ever to occur to a human mind, because it — alone as far as we know — explains the elegant illusion of design that pervades the living kingdoms and explains, in passing, us.

    Derived terms

    * momentously * momentousness

    weighty

    English

    (Webster 1913)

    Adjective

    (er)
  • Having weight; heavy; ponderous; as, a weighty body.
  • Adapted to turn the balance in the mind, or to convince; important; forcible; serious; momentous.
  • Rigorous; severe; afflictive.