Frightening
Frightening adjective - Causing fear.
Harmful and frightening are semantically related. In some cases you can use "Harmful" instead an adjective "Frightening".
Harmful
Harmful adjective - Causing or capable of causing harm.
Frightening and harmful are semantically related. Sometimes you can use "Frightening" instead an adjective "Harmful".
Mutual synonyms
Related pairs
- painful and frightening
- painful and harmful
- baleful and frightening
- baleful and harmful
- sinister and frightening
- sinister and harmful
- dangerous and frightening
- dangerous and harmful
- terrible and frightening
- terrible and harmful
- distressing and frightening
- distressing and harmful
- upsetting and frightening
- upsetting and harmful
Both words in one sentence
- Their song "True Love" is also a good (if still rather frightening) example of the passive variety, with the lyrical speaker telling the object of his affection that he'll do all kinds of dangerous or harmful things for her (including plucking out his eyes "because love is blind").
Source: Obsession Song
Cite this Source
Harmful and Frightening. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/frightening/harmful
Frightening & Harmful. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/frightening/harmful>.
Harmful or Frightening. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/frightening/harmful.
Google Ngram Viewer shows how "frightening" and "harmful" have occurred on timeline