Harmless and Unsound

Opposite meaning words

Harmless adjective - Not causing or being capable of causing injury or hurt.

Usage example: a perfectly harmless little spider

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Unsound is an antonym for harmless.

Nearby Words: harm, harmful, harmlessly

Unsound adjective - Having or showing a very abnormal or sick state of mind.

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Harmless is an antonym for unsound.

Nearby Words: unsounded, unsoundly

Cite this Source

Unsound and Harmless. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/harmless/unsound

Harmless & Unsound. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/harmless/unsound>.

Unsound or Harmless. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/harmless/unsound.

Google Ngram Viewer shows how "harmless" and "unsound" have occurred on timeline