形容词

1. 多山的
A mountainous place has a lot of mountains.

2. 波涛汹涌的；万丈波涛的
If you refer to mountainous seas, you are emphasizing that the sea is very rough.

3. 庞大的;巨大的;大量的
You use mountainous to emphasize that something is great in size, quantity, or degree.

1. containing many mountains

2. like a mountain in size and impressiveness

e.g. mountainous waves
a mountainous dark man

3. having hills and crags

e.g. hilly terrain

Synonym: craggedcraggyhilly