Ill
Ill adjective - Causing or capable of causing harm.
Usage example: one of the ill effects of winter weather is the rapid spread of germs as people spend more time together indoors
Threatening is a synonym for ill in bad topic. In some cases you can use "Threatening" instead an adjective "Ill".
Nearby Word: illness
Threatening
Threatening adjective - Being or showing a sign of evil or calamity to come.
Usage example: a threatening silence followed the loud thump in the adjoining motel room
Ill is a synonym for threatening in ominous topic. Sometimes you can use "Ill" instead an adjective "Threatening".
Mutual synonyms
Related pairs
Both words in one sentence
- Despite this, she has never shown any ill intent towards anyone or acted threatening.
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I Have Your Wife: Marek forces Dragon and Agnieszka to help his ill-advised mission to retrieve Queen Hanna from the Wood by threatening to have Kasia immediately executed if they don't.
Source: Literature / Uprooted -
Cue to Lunlun attaching herself to him in 3, 2, 1... Ill Girl: Alitta from the Netherlands arc, though it's a temporary illness rather than a life-threatening one.
Source: Anime / Hana no Ko Lunlun
Cite this Source
Threatening and Ill. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/ill/threatening
Ill & Threatening. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/ill/threatening>.
Threatening or Ill. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/ill/threatening.
Google Ngram Viewer shows how "ill" and "threatening" have occurred on timeline