uneasiness

adjective, un·eas·i·er, un·eas·i·est.

1. not easy in body or mind; uncomfortable; restless; disturbed; perturbed.
2. not easy in manner; constrained; awkward.
3. not conducive to ease; causing bodily discomfort.

adjective

1. (of a person) anxious; apprehensive
2. (of a condition) precarious; uncomfortablean uneasy truce
3. (of a thought, etc) disturbing; disquieting

late 13c., “not comforting,” from un- (1) “not” + easy. Meaning “disturbed in mind” is attested from 1670s.