Definitions, Meanings, Synonyms and Antonyms of “harmful”


Things that are harmful hurt people, or are likely to hurt them. Listening to loud music through headphones can be harmful to your hearing.


Harmful is an adjective that comes in handy when you’re talking about things that cause injury to someone or damage something. Burning coal can be harmful to the environment, and eating too much candy can be harmful for your teeth. Harmful words can hurt someone’s feelings and harmful actions might put them in danger. The Old English hearm, “hurt, evil, or grief,” is at the root of harmful.

Definitions of harmful


adj causing or capable of causing harm

“too much sun is harmful to the skin”
harmful effects of smoking”

constituting a disadvantage

evil or harmful in nature or influence

causing destruction or much damage

characterized by physical or psychological maltreatment

capable of harming

causing mental or emotional injury
deleterious, hurtful, injurious

harmful to living things
calumniatory, calumnious, defamatory, denigrating, denigrative, denigratory, libellous, libelous, slanderous

(used of statements) harmful and often untrue; tending to discredit or malign
catastrophic, ruinous

extremely harmful; bringing physical or financial ruin

tending to hinder the achievement of a goal
damaging, detrimental, prejudicial, prejudicious

(sometimes followed by `to’) causing harm or injury

resulting in suffering or adversity
insidious, pernicious, subtle

working or spreading in a hidden and usually injurious way

deliberately causing harm or damage

having a tendency to cause harm
stabbing, wounding

causing physical or especially psychological injury

injurious to physical or mental health

causing anger or annoyance

causing physical or psychological pain

of or relating to or caused by a toxin or poison

detrimental to physical or moral well-being

not causing or capable of causing harm
benign, benignant

pleasant and beneficial in nature or influence
innocent, innocuous

lacking intent or capacity to injure

not injurious to physical or mental health

not causing physical or psychological pain

free from danger or the risk of harm
atoxic, nontoxic

not producing or resulting from poison
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“harmful” Sentence Examples

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How to use “harmful” in a sentence. Example sentences with the word “harmful”. “harmful” example sentences.


Definition of “harmful” in Dictionaries

Definition of “harmful” in famous dictionaries for free.