unerratic

• a word derived from erratic.
  erratic

  adjective

  deviating from the usual or proper course in conduct or opinion; eccentric.

Related Words

• abnormal
• arbitrary
• bizarre
• capricious
• eccentric
• inconsistent
• irregular
• mercurial
• uncertain
• unreliable
• unstable
• unusual
• volatile
• wayward
• weird
• whimsical