The area around the little village was very mountainous.
Switzerland is noted for its mountainous terrain.
Yes, for example:The road ahead seemed to be very mountainous.
The area of my fathers origin was very mountainous
The terrain was mountainous.
The word for mountainous in Spanish is: montañoso.
what is a good sentence for the word opposite
A good sentence for the word baffled is:
The consummate beauty of New Hampshire's mountainous terrain is a manifestation of Nature's sagacious truth.
Any sentence that properly uses the word additionally is a good sentence. Additionally, the above is a great sentence.
Your question is a good sentence using the word "common".
"I am using a sentence with the word economics."
There is not just one good sentence for "there," there are many.