Nasty
Nasty adjective - Arousing or deserving of one's loathing and disgust.
Treacherous and nasty are semantically related. In some cases you can use "Treacherous" instead an adjective "Nasty".
Nearby Word: nastily
Treacherous
Treacherous adjective - Not true in one's allegiance to someone or something.
Nasty and treacherous are semantically related. Sometimes you can use "Nasty" instead an adjective "Treacherous".
Nearby Words: treachery, treacherously
Mutual synonyms
Both words in one sentence
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In the Lost Tales Finrod Felagund and his nasty, treacherous cousin Celegorm were originally the same elf.
Source: Decomposite Character -
This area is filled with hordes of nasty creatures, treacherous landscapes, functional war machines, and lakes of explosive and caustic Fuel Gel.
Cite this Source
Treacherous and Nasty. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/nasty/treacherous
Nasty & Treacherous. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/nasty/treacherous>.
Treacherous or Nasty. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/nasty/treacherous.
Google Ngram Viewer shows how "nasty" and "treacherous" have occurred on timeline