restlessness

noun

An uneasy or nervous state: disquiet, disquietude, inquietude, restiveness, unease, uneasiness, unrest. See calm/agitation.

Definition: constant motion; discontent
Antonyms: calm, contentedness, relaxation, restfulness

The noun has 4 meanings:

Meaning #1: the quality of being ceaselessly moving or active

Meaning #2: a lack of patience; irritation with anything that causes delay
  Synonym: impatience

Meaning #3: a feeling of agitation expressed in continual motion
  Synonyms: fidget, fidgetiness

Meaning #4: inability to rest or relax or be still
  Synonym: uneasiness