Which term is used to describe something that has a harmful effect?

The term "deleterious" is used to describe something that has a harmful or damaging effect. It is often employed in contexts related to health, environment, and social issues, where certain actions, substances, or conditions can lead to negative outcomes. Understanding that "deleterious" implies a clear adverse impact helps clarify its use in discussions about safety, well-being, and the repercussions of various practices or policies.

In contrast, the other terms convey different meanings. For example, "beneficial" refers to something that produces a positive outcome, while "innocuous" describes something that is safe or harmless. "Neutered" generally relates to the removal of reproductive capability, which does not align with the concept of causing harm. Thus, "deleterious" stands out as the appropriate term in this context, accurately capturing the essence of something that is harmful.