In a way that is too much for the mind to picture. It is nearly always put in front of an adjective to push that adjective as far as it will go: unimaginably rich, unimaginably far away, unimaginably cruel, unimaginably small.

In a way that is too much for the mind to picture形容一種心裡想像不出來的程度。It is nearly always put in front of an adjective它幾乎總是放在形容詞前面 to push that adjective as far as it will go把那個形容詞推到極限 unimaginably rich, unimaginably far away, unimaginably cruel, unimaginably small像unimaginably rich有錢到難以想像、unimaginably far away遠到難以想像、unimaginably cruel殘忍到難以想像、unimaginably small小到難以想像。

Think of it as a stronger, more literary brother of "extremely".

Think of it as a stronger, more literary brother of 'extremely'把它想成'extremely'非常的一個更強、更文學性的兄弟。

Because it is strong, it loses its power if you use it often; good writers save it for the one thing in the paragraph that really is beyond normal scale — the size of a galaxy, the suffering of a war, the fortune of a king. Like the adjective, it works for both good and bad things.

Because it is strong, it loses its power if you use it often正因為它力道強，常用就會失去力量 good writers save it for the one thing in the paragraph that really is beyond normal scale厲害的作者會把它留給一段話裡真正超出常規尺度的那一件事 the size of a galaxy, the suffering of a war, the fortune of a king像銀河的大小、戰爭的苦難、國王的財富。Like the adjective, it works for both good and bad things跟形容詞一樣，好事壞事都可以用。

It is a written word more than a spoken one; in conversation people say "unbelievably" or just "so".

It is a written word more than a spoken one它比較是書面用字，而不是口語用字 in conversation people say 'unbelievably' or just 'so'對話裡人們會說'unbelievably'不可思議地，或就直接說'so'超。