Meaning & Definition of word "Harmful"

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    Harmful

    /ˈhɑːrmfəl/

    adjective:

    • 1. Causing or capable of causing damage or injury.
      • Example: The chemicals in that product are harmful to the environment.
    • 2. Having a negative effect on health or well-being.
      • Example: Excessive sugar consumption can be harmful to your health.
    • 3. Destructive or hurtful in nature.
      • Example: The rumor spread by the gossip was harmful to her reputation.
    • 4. Tending to cause physical or psychological harm.
      • Example: Secondhand smoke is known to be harmful to children.
    • 5. Detrimental or unfavorable.
      • Example: Lack of sleep can have harmful effects on cognitive function.

    Etymology

    Middle English: from harm + -ful.

    Common Phrases and Expressions

    harmful effects:

    negative consequences that can cause damage or suffering.

    harmful environment:

    a setting that poses dangers or risks to health and safety.

    harmful substances:

    materials that can cause damage to living organisms.

    Related Words

    harm:

    to cause physical or emotional damage.

    injury:

    damage or harm done to a person or thing.

    detrimental:

    causing harm or damage.

    Slang Meanings of harmful

    Meaning: bad for you

    Example Sentence: Those junk foods are really bad for you, totally harmful.

    Meaning: toxic

    Example Sentence: That relationship became so toxic, it was harmful to my mental health.