Dangerous
Dangerous adjective - Involving potential loss or injury.
Frightful and dangerous are semantically related. In some cases you can use "Frightful" instead an adjective "Dangerous".
Nearby Words: danger, dangerously
Mutual synonyms
Related pairs
Both words in one sentence
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Traditionally, in folklore, they were benevolent, despite their appearance, which was framed as being frightful to scare demons away from churches, but meeting their gaze was dangerous.
Source: Our Gargoyles Rock -
Charter member of the Frightful Four, wields fairly dangerous adhesive-based weaponry.
Source: Never Live It Down / Comic Books
Cite this Source
Frightful and Dangerous. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/dangerous/frightful
Dangerous & Frightful. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/dangerous/frightful>.
Frightful or Dangerous. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/dangerous/frightful.
Google Ngram Viewer shows how "dangerous" and "frightful" have occurred on timeline