Harmful Meaning

/ˈhɑːmfl̩/
B1

Definition, CEFR level B1, pronunciation, examples, and quiz.

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adjCausing or likely to cause harm or damage; injurious.

Smoking may be harmful to his heart.
Smoking is harmful to health.
There is no denying the fact that smoking is harmful.
Synonyms:
Antonyms:
CEFR Practice Quiz
Eating too much sugar is ____ to your teeth and causes cavities.
CEFR Practice Quiz (Alternate)
It is important to wear sunscreen to protect your skin from the ____ effects of UV radiation.

From Middle English harmful, from Old English *hearmful (suggested by hearmfullīċ (“harmful; hurtful”)), equivalent to harm + -ful. Cognate with German harmvoll, Danish harmfuld, Swedish harmfull.

Explore More B1 Vocabulary Words

CEFR Practice Quiz
Eating too much sugar is ____ to your teeth and causes cavities.
CEFR Practice Quiz (Alternate)
It is important to wear sunscreen to protect your skin from the ____ effects of UV radiation.

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