harmful

harm•ful /ˈhɑrmfəl/ adj. causing or capable of causing harm. harm•ful•ly, adv. harm•ful•ness, n. [uncountable] WordReference Random House Unabridged Dictionary of American English © 2025

Harmful

harmful If something is harmful to someone or harmful for them, it has a bad effect on them. Too much salt can be harmful to a young baby. Potassium could be harmful for those with impaired kidneys.

harmful adjective

Definition of harmful adjective in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

What does HARMFUL mean?

Harmful refers to something that is capable of causing damage, injury, or has a detrimental effect on one''s health, well-being, or the environment. Harmful is a rock band from Frankfurt, Germany,

HARMFUL Definition & Meaning

The meaning of HARMFUL is of a kind likely to be damaging : injurious. How to use harmful in a sentence.

HARMFUL | definition in the Cambridge English Dictionary

We try to stress the things that could be inappropriate, things that could be harmful or embarrassing for you, your family or your team.

harmful

Causing or likely to cause harm or damage; injurious. Wear a hat to protect your skin from harmful sunlight. Smoking is harmful to the lungs. Burning fossil fuels is harmful to the

HARMFUL definition in American English | Collins English Dictionary

Something that is harmful has a bad effect on something else, especially on a person''s health.the harmful effects of smoking.

HARMFUL Definition & Meaning | Dictionary

HARMFUL definition: causing or capable of causing harm; injurious. See examples of harmful used in a sentence.