a. astonishing; wonderful; amazing, especially, astonishing in magnitude or elevation
The lads came back and went at their sports again with a will, chattering all the time about Tom's stupendous plan and admiring the genius of it.
Sentence in Classic:
I was oppressed by fatigue and hunger and far too unhappy to enjoy the gentle breezes of evening or the prospect of the sun setting behind the stupendous mountains of Jura.
Frankenstein By Mary Wollstonecraft (Godwin) Shelley Context
It was a night of joy and terror, such as this man of stupendous emotions had already experienced twice or thrice in his lifetime.
The Count of Monte Cristo By Alexandre Dumas Context