Thunderous and Unpropitious

Thunderous

Thunderous adjective - Extremely ominous.
Usage example: world events of thunderous import

Unpropitious and thunderous are semantically related. In some cases you can use "Unpropitious" instead an adjective "Thunderous".

Unpropitious

Unpropitious adjective - Not propitious.

Thunderous and unpropitious are semantically related. Sometimes you can use "Thunderous" instead an adjective "Unpropitious".
Cite this Source
Unpropitious and Thunderous. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/thunderous/unpropitious
Thunderous & Unpropitious. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/thunderous/unpropitious>.
Unpropitious or Thunderous. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/thunderous/unpropitious.
Google Ngram Viewer shows how "thunderous" and "unpropitious" have occurred on timeline