Harmless
Harmless adjective - Not causing or being capable of causing injury or hurt.
Usage example: a perfectly harmless little spider
Safe is a synonym for harmless in property topic. In some cases you can use "Safe" instead an adjective "Harmless", when it comes to topics like not injurious or dangerous. popular alternative
Safe
Safe adjective - Not causing or being capable of causing injury or hurt.
Usage example: that pain reliever is safe for most people to take
Harmless is a synonym for safe in property topic. You can use "Harmless" instead an adjective "Safe", if it concerns topics such as innocent, not dangerous. popular alternative
Mutual synonyms
Both words in one sentence
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Peeta gets knocked unconscious and seems no worse off for it than he was already, but the circumstances of administering the blow would have justified lethal force anyway, and nobody pretends that it's a safe or harmless way of incapacitating someone.
Source: Tap on the Head -
The basic B1 units (the "roger-roger" droids) are the most harmless and safe to kill, and Star Wars: The Clone Wars portray them as outright comic relief.
Source: Mecha-Mooks -
She works for the corrupted government, creates safe and harmless ways to practice magic, and yet makes students carve sentences in their hands with their own blood as detention, for contradicting the Minister of Magic.
Source: Lawful Evil
Cite this Source
Safe and Harmless. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/harmless/safe
Harmless & Safe. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/harmless/safe>.
Safe or Harmless. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/harmless/safe.
Google Ngram Viewer shows how "harmless" and "safe" have occurred on timeline