adjective causing or capable of causing harm; injurious
Harmful pollutants can negatively impact ecosystems and wildlife.
Harmful substances can cause damage to the body and result in illness or injury.
Identifying and categorizing harmful chemicals based on their properties.
Educating the public on the dangers of harmful behaviors or substances.
Studying the effects of harmful substances on living organisms.
In the context of a writer, 'harmful' may be used to describe content that could potentially cause emotional or physical harm to readers. Writers may need to be mindful of the impact their words can have on their audience.
Psychologists may use 'harmful' to describe behaviors or thought patterns that are detrimental to an individual's mental health. They may work with clients to identify and address harmful behaviors in therapy sessions.