The meaning of PATHOLOGICAL is of or relating to pathology. How to use pathological in a sentence.

PATHOLOGICAL definition: 1. (of a person) unable to control part of their behaviour; unreasonable: 2. involving or relating…. Learn more.

You describe a person or their behaviour as pathological when they behave in an extreme and unacceptable way, and have very powerful feelings which they cannot control.

There are six meanings listed in OED's entry for the word pathological, one of which is labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

1. of or pertaining to pathology. 2. caused or affected by disease. 3. characterized by an unhealthy compulsion: a pathological liar.

PATHOLOGICAL definition: of or relating to pathology, or the science or study of diseases and their causes. See examples of pathological used in a sentence.

PATHOLOGICAL meaning: 1 : extreme in a way that is not normal or that shows an illness or mental problem; 2 : relating to or caused by disease