Definition of harmless in English:


Line breaks: harm|less
Pronunciation: /ˈhɑːmləs


1Not able or likely to cause harm: the venom of most spiders is harmless to humans
More example sentences
  • Donating blood is harmless to the donor and yet gives a gift of life to a dying person.
  • It can cause nausea and, in extreme cases, death in humans, but is harmless to marine life.
  • The tope shark is considered harmless to humans because of its small size and its preference for small prey items.
safe, innocuous, benign, gentle, mild, wholesome, non-dangerous, non-toxic, non-poisonous, non-irritant, non-addictive
rare innoxious
1.1Inoffensive: as an entertainer, he’s pretty harmless
More example sentences
  • I agreed, breathing a sigh of relief that his request seemed to be innocent and harmless enough.
  • We've got better things to do than to try and distort what is now a harmless nickname.
  • And of course we should continue to take these awful, embarrassing and harmless photos.



More example sentences
  • Staphylococcus aureus - staph - is a type of bacterium that lives harmlessly on our skin.
  • He claims laughter provides a way for negative emotions to be harmlessly released.
  • An asteroid with a diameter of 30m passed close but harmlessly by Earth, astronomers said.


More example sentences
  • A lot of churches seem to make it their main job to assert their own harmlessness, advertising a ‘safe, accepting environment’.
  • But in the buzzing reality of daily life, bees collect from hundreds of types of plants, so whatever toxins they pick up are diluted to the point of harmlessness.
  • Interestingly, the premise that marijuana is harmless because it's just a plant could also be used to explain the harmlessness of cocaine and heroin.

Definition of harmless in: