An uneasy or distressing desire (for something).
An unpleasant state of mental uneasiness, nervousness, apprehension and obsession or concern about some uncertain event.
A state of restlessness and agitation, often accompanied by a distressing sense of oppression or tightness in the stomach.
The state of being difficult, or hard to do.
Physical danger from the environment, especially with risk of drowning
An obstacle that hinders achievement of a goal.
An objection.
An awkward situation or quarrel.
That which cannot be easily understood or believed.