distractibility

This term describes a psychological predisposition or a cognitive trait rather than a temporary state of being distracted. It carries a clinical or evaluative tone, often appearing in educational assessments, medical reports, or behavioral analyses to describe a persistent pattern of attention deficit.

Because it describes an abstract quality or a characteristic property, it is treated as an uncountable mass noun. It cannot be pluralized to describe multiple instances of the trait; instead, one must use phrases like different levels of distractibility or various types of distractibility to indicate variation.