harmful

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English[edit]

Alternative forms[edit]

Etymology[edit]

From harm +‎ -ful.

Pronunciation[edit]

Adjective[edit]

harmful (comparative harmfuller or more harmful, superlative harmfullest or most harmful)

  1. of a kind likely to be damaging; injurious
    Wear a hat to protect your skin from harmful sunlight.

Usage notes[edit]

  • Nouns to which "harmful" is often applied: effect, consequence, impact, influence, emission, chemical, ingredient, substance, gas, agent, additive, drug, radiation, dust, organism, plant, animal, insect, action, act, behavior, component, content, activity, interference, use.

Synonyms[edit]

Antonyms[edit]

Translations[edit]

See also[edit]