An unpleasant state of mental uneasiness, nervousness, apprehension and obsession or concern about some uncertain event.
An uneasy or distressing desire (for something).
A state of restlessness and agitation, often accompanied by a distressing sense of oppression or tightness in the stomach.
Freedom from worry or apprehensiveness; insouciance or nonchalance.
Lack of interest or care; indifference or apathy.