A feeling of uneasiness, apprehension, or fear that has a vague or unknown source is a definition of:

Question

Quizplus · Accepted Answer

The definition provided fits the description of anxiety, which is an emotional state characterized by feelings of tension, worried thoughts, and physical changes such as increased blood pressure. It often arises without an immediate threat and can be difficult to pinpoint the source of the unease.

A Feeling of Uneasiness, Apprehension, or Fear That Has a Vague