Mountainous and Planetary

Mountainous

Mountainous adjective - Unusually large.
Usage example: the seemingly mountainous obstacles he had to overcome while growing up

Planetary and mountainous are semantically related. In some cases you can use "Planetary" instead an adjective "Mountainous".

Nearby Words: mountain, mountaineer

Planetary

Planetary adjective - Unusually large.
Usage example: a positively planetary new shopping development

Mountainous and planetary are semantically related. Sometimes you can use "Mountainous" instead an adjective "Planetary".

Nearby Words: planet, planetarium
Cite this Source
Planetary and Mountainous. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/mountainous/planetary
Mountainous & Planetary. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/mountainous/planetary>.
Planetary or Mountainous. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/mountainous/planetary.
Google Ngram Viewer shows how "mountainous" and "planetary" have occurred on timeline