Harmless
Harmless adjective - Not causing or being capable of causing injury or hurt.
Life-threatening is an antonym for harmless.
Life-threatening
Life-threatening adjective - Causing fear or anxiety by threatening great harm.
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Synonyms for Life-threatening
Harmless is an antonym for life-threatening in very dangerous topic.
Both words in one sentence
- There is a real risk of receiving permanent or even life-threatening injuries from this, in a sport that's supposed to be completely harmless (at least, to the people playing it).
Source: Dangerous Forbidden Technique -
Note that this trope is a sliding scale; Nightmare Fetishism can range from a harmless fondness for morbid stories to a literal sexual fascination with the life-threatening.
Source: Nightmare Fetishist -
This can vary from relatively harmless sponges to life-threatening knife blades.
Source: Failed a Spot Check
Cite this Source
Life-threatening and Harmless. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/harmless/life-threatening
Harmless & Life-threatening. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/harmless/life-threatening>.
Life-threatening or Harmless. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/harmless/life-threatening.
