Harmful

Pronunciation

• GenAm IPA: /ˈhɑɹmflÌ©/
• RP IPA: /ˈhɑːmflÌ©/

Alternative forms

• harmfull archaic

Origin

From harm + -ful.

Full definition of harmful

Adjective

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

Usage notes

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

• injurious; see also

Antonyms

• beneficial
• harmless