Which option defines 'momentous' as extremely important?

• A. weighty
• B. trivial
• C. irrelevant
• D. extremely important, especially in reference to the future or future events

Answer: (D)

Momentous describes something of great importance, especially because it will have a significant effect on future events. The option that says “extremely important, especially in reference to the future or future events” captures that exact sense, making it the best choice. Trivial means of little importance, and irrelevant means not related, so they don’t fit. Weighty is related to seriousness, but it doesn’t explicitly emphasize the future impact that momentous commonly conveys. An example helps: a momentous decision can change the course of history, underscoring why future consequences are a key part of the word.