1. 
[syn: overturned, upset, upturned]
The Collaborative International Dictionary of English v.0.48:
Overturn \O`ver*turn"\, v. t. [imp. & p. p. Overturned; p. pr.
   & vb. n. Overturning.]
   1. To turn or throw from a basis, foundation, or position; to
      overset; as, to overturn a carriage or a building.
      [1913 Webster]
   2. To subvert; to destroy; to overthrow.
      [1913 Webster]
   3. To overpower; to conquer. --Milton.
      [1913 Webster]
   Syn: To demolish; overthrow. See Demolish.
        [1913 Webster]
WordNet (r) 3.0 (2006):
overturned
    adj 1: having been turned so that the bottom is no longer the
           bottom; "an overturned car"; "the upset pitcher of milk";
           "sat on an upturned bucket" [syn: overturned, upset,
           upturned]