adj

• (Scotland) Strange, weird.
  "It was noted by them that kenned best that her cantrips were at their worst when the tides in the Sker Bay ebbed between the hours of twelve and one. At this season of the night the tides of mortality run lowest, and when the outgoing of these unco waters fell in with the setting of the current of life, then indeed was the hour for unholy revels."

adv

• (Scotland, northern UK) Very.
  "‘Ye should tear up this carpet, Robbie,’ Uncle Peter called back over his shoulder. ‘It's most unco wearisome when a body′s leg-weary.’"

adj

• (slang, New Zealand, Australia) Uncoordinated.
  "‘Aren′t he the most unco kid you ever come across?’ Norm refused to have Kevin on his boat even if he begged to be taken because he was too clumsy."