Portentous
Portentous adjective - Causing wonder or astonishment.
Usage example: in 1969 people regarded the first landing on the moon as a truly portentous event
Unique and portentous are semantically related. In some cases you can use "Unique" instead an adjective "Portentous".
Nearby Words: portent, portentously
Unique
Unique adjective - Of, relating to, or belonging to a single person.
Portentous and unique are semantically related. Sometimes you can use "Portentous" instead an adjective "Unique".
Nearby Words: uniquely, uniqueness
Mutual synonyms
Cite this Source
Unique and Portentous. (2016). Retrieved 2026, August 08, from https://thesaurus.plus/related/portentous/unique
Portentous & Unique. N.p., 2016. Web. 08 Aug. 2026. <https://thesaurus.plus/related/portentous/unique>.
Unique or Portentous. 2016. Accessed August 08, 2026. https://thesaurus.plus/related/portentous/unique.
Google Ngram Viewer shows how "portentous" and "unique" have occurred on timeline