anxiety n. A state of uneasiness and apprehension, as about future uncertainties. n. A cause of anxiety: For some people, air travel is a real anxiety.

anxiety n. A state of uneasiness and apprehension, as about future uncertainties. n. A cause of anxiety: For some people, air travel is a real anxiety. n. Psychiatry A state of apprehension, uncertainty, and fear resulting from the anticipation of a *realistic* or fantasized threatening event or situation, often impairing physical and psychological functioning. Emphasis mine. That's all I'm going to say.