Dark
Dark adjective - Being without light or without much light.
Treacherous and dark are semantically related. In some cases you can use "Treacherous" instead an adjective "Dark".
Treacherous
Treacherous adjective - Not true in one's allegiance to someone or something.
Dark and treacherous are semantically related. Sometimes you can use "Dark" instead an adjective "Treacherous".
Nearby Words: treachery, treacherously
Mutual synonyms
Both words in one sentence
- Finding anyone in those caves would be like finding a needle in a very dark, very treacherous haystack.
Source: Roleplay / Save The Earth -
Dark Action Girl: Slipstream, the Female Starscream, as treacherous as her progenitor and her fellow trope examples.
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After hiking through the treacherous mountains and biting winds you suddenly feel a dark presence and then the battle begins.
Source: Narm / Video Games
Cite this Source
Treacherous and Dark. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/dark/treacherous
Dark & Treacherous. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/dark/treacherous>.
Treacherous or Dark. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/dark/treacherous.
Google Ngram Viewer shows how "dark" and "treacherous" have occurred on timeline