a.

1. 巨大的，极大的
   They cost a tremendous amount of money.

   他们花去了一大笔钱。

2. 【口】极度的，惊人的
   The play became a tremendous hit.

   该剧极为叫座。

3. 【口】极好的，很棒的
   We had a tremendous time on the beach.

   我们在海滩上玩得很痛快。

adj.

1. very great in amount, scale, or intensity.
2. informal extremely good or impressive; excellent.
3. archaic inspiring awe or dread.