Synonyms of momentous in English:

momentous

adjective

  • a momentous decision
    [Antonyms] unimportant, trivial, insignificant
  • momentous or momentary? See momentary

    Definition of momentous in:

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    Word of the day rebuff
    Pronunciation: rɪˈbʌf
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    reject (someone or something) in an abrupt manner…