MOMENTOUS


Meaning of MOMENTOUS in English

mo ‧ men ‧ tous /məʊˈmentəs, mə- $ moʊ-, mə-/ BrE AmE adjective

[ Word Family: noun : ↑ moment , ↑ momentum ; adjective : ↑ momentary , ↑ momentous ; adverb : ↑ momentarily ]

a momentous event, change, or decision is very important because it will have a great influence on the future:

a momentous decision

Momentous events are taking place in the US.

His colleagues all recognized that this was a momentous occasion.

one of the most momentous days in British sport

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THESAURUS

■ very important

▪ essential very important, especially for the success, health, or safety of someone or something:

It is essential to speak the local language.

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essential supplies of food and clothing

▪ vital/crucial extremely important, because without it there could be serious problems:

His evidence was vital to the case.

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The US plays a crucial role in the region.

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The media are a vital part of the political system.

▪ key extremely important and having a big effect:

Wheeler had a key role in the development of the atom bomb.

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Timing is key.

▪ of great/considerable importance very important:

In the construction industry, health and safety are of considerable importance.

▪ momentous very important because it has a very great effect on the future:

Momentous events were taking place in Russia.

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a momentous decision

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.