(psychiatry) a relatively permanent state of worry and nervousness occurring in a variety of mental disorders, usually accompanied by compulsive behavior or attacks of panic
source: WordNet 3.0
a vague unpleasant emotion that is experienced in anticipation of some (usually ill-defined) misfortune
source: WordNet 3.0
Concern or solicitude respecting some thing or event, future or uncertain, which disturbs the mind, and keeps it in a state of painful uneasiness.
