harmfulness

This term focuses on the inherent capacity or potential of an agent to cause injury, rather than the actual occurrence of harm. It is frequently employed in technical, legal, or scientific discourse to quantify risk or evaluate the toxicity of a substance. While harm describes the result, harmfulness describes the property.

As an abstract quality, this noun is uncountable. It does not have a plural form and cannot be counted with numbers; instead, it is measured in degrees or levels, often appearing with modifiers such as extreme, relative, or potential.