noun.
A state of disquiet, uneasiness, or anxiety.
noun.
A fear or an instance of uneasiness.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
feelings of anxiety that make you tense and irritable
Word Usage
"They are under a frightful apprehension of guilt and wrath, that they cannot enjoy themselves; when they seem settled they are in disquietude, when they seem merry they are in heaviness; like Cain, who always dwelt in the land of shaking."