Thesaurus
Synonyms & Antonyms of harmless
not causing or being capable of causing injury or hurt
- a perfectly harmless little spider
Synonyms for harmless
Words Related to harmless
Near Antonyms for harmless
- hazardous,
- imperiling
- (or imperilling),
- jeopardizing,
- parlous,
- perilous,
- risky,
- unsafe,
- unsound
Antonyms for harmless
Learn More About harmless
Cite this Entry
“Harmless.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/harmless. Accessed 18 Aug. 2022.
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Time Traveler for harmless
The first known use of harmless was in the 14th century
See more words from the same century