Mountainous
Mountainous adjective - Unusually large.
Usage example: the seemingly mountainous obstacles he had to overcome while growing up
Outsize is a synonym for mountainous. In some cases you can use "Outsize" instead an adjective "Mountainous".
Nearby Words: mountain, mountaineer
Outsize
Outsize adjective - Unusually large.
Usage example: an outsize cat who weighs 25 pounds
Mountainous is a synonym for outsize in huge topic. You can use "Mountainous" instead an adjective "Outsize", if it concerns topics such as extremely large.
Mutual synonyms
Related pairs
Cite this Source
Outsize and Mountainous. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/mountainous/outsize
Mountainous & Outsize. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/mountainous/outsize>.
Outsize or Mountainous. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/mountainous/outsize.
Google Ngram Viewer shows how "mountainous" and "outsize" have occurred on timeline