adjective

mountainous

mountainous, hilly, huge

It is a mountainous region.

It is a mountainous region.

He faced a mountainous pile of work.

He faced a mountainous pile of work.

mountainous ((noun)) describing a place or thing It is a mountainous region.

Synonyms: hilly, rugged, huge; Antonyms: flat, level

From 'mountain' + the suffix '-ous' (meaning 'full of' or 'characterized by').

The '-ous' ending means 'full of', so 'mountainous' literally means 'full of mountains'.

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