Treacherous
Treacherous adjective - Not true in one's allegiance to someone or something.
Threatening and treacherous are semantically related. In some cases you can use "Threatening" instead an adjective "Treacherous".
Nearby Words: treachery, treacherously
Threatening
Threatening adjective - Involving potential loss or injury.
Usage example: threatening rocks lined that narrow stretch of the river through which we would be rafting
Treacherous and threatening are semantically related. Sometimes you can use "Treacherous" instead an adjective "Threatening".
Cite this Source
Threatening and Treacherous. (2016). Retrieved 2026, July 30, from https://thesaurus.plus/related/treacherous/threatening
Treacherous & Threatening. N.p., 2016. Web. 30 Jul. 2026. <https://thesaurus.plus/related/treacherous/threatening>.
Threatening or Treacherous. 2016. Accessed July 30, 2026. https://thesaurus.plus/related/treacherous/threatening.
Google Ngram Viewer shows how "treacherous" and "threatening" have occurred on timeline