Which term means to reduce the force or intensity of a quality or condition?

The correct term that means to reduce the force or intensity of a quality or condition is "mitigate." This term is commonly used in various contexts, such as law, healthcare, and environmental science, to describe actions or measures taken to lessen the severity or seriousness of a situation. For example, one might mitigate the effects of a natural disaster by implementing safety measures or providing support to affected communities.

In contrast, the other terms mentioned have distinct meanings that do not pertain to reducing intensity. "Malleable" refers to the ability of a material to be shaped or molded, often used in relation to metals and their properties. "Obfuscate" means to make something unclear or unintelligible, often by confusing or obscuring the meaning. "Odious" describes something that is extremely unpleasant or repulsive. Each of these terms has its own specific usage and does not convey the idea of reduction in intensity, which is why "mitigate" stands out as the correct choice in this context.