Fragen über die Beispielsätze mit, und die Definition und Benutzung von "Momentous"

A: It’s a fancy word for very significant or important. “Momentous occasion” is a common fixed expression in English. It just means very significant/important event, like the first Moon landing for example.

A: "Very important". It's a very formal word, and sounds like, "This is a moment that will always be remembered."

A: As adjectives, the difference between significant and momentous is that significant is signifying something; carrying meaning.

While momentous is outstanding in importance and of great consequence.

A: Important can be anything even a person with a higher value than others.
Momentous is an event that has a memorable and important effect on the future. Like knocking down the Berlin Wall.
Eventful means a lot happening. "I had an eventful day."
Significant means meaningful. A significant number of people means a large number of people. A significant change in the law means that it is a big change.