1. 
[syn: defeated, disappointed, discomfited, foiled, frustrated, thwarted]
The Collaborative International Dictionary of English v.0.48:
Thwart \Thwart\, v. t. [imp. & p. p. Thwarted; p. pr. & vb. n.
   Thwarting.]
   1. To move across or counter to; to cross; as, an arrow
      thwarts the air. [Obs.]
      [1913 Webster]
            Swift as a shooting star
            In autumn thwarts the night.          --Milton.
      [1913 Webster]
   2. To cross, as a purpose; to oppose; to run counter to; to
      contravene; hence, to frustrate or defeat.
      [1913 Webster]
            If crooked fortune had not thwarted me. --Shak.
      [1913 Webster]
            The proposals of the one never thwarted the
            inclinations of the other.            --South.
      [1913 Webster]
WordNet (r) 3.0 (2006):
thwarted
    adj 1: disappointingly unsuccessful; "disappointed expectations
           and thwarted ambitions"; "their foiled attempt to capture
           Calais"; "many frustrated poets end as pipe-smoking
           teachers"; "his best efforts were thwarted" [syn:
           defeated, disappointed, discomfited, foiled,
           frustrated, thwarted]
Moby Thesaurus II by Grady Ward, 1.0:
25 Moby Thesaurus words for "thwarted":
   baffled, balked, betrayed, bilked, blasted, blighted, chapfallen,
   crestfallen, crossed, crushed, dashed, defeated, disappointed,
   dished, disillusioned, dissatisfied, foiled, frustrated,
   ill done-by, ill-served, let down, out of countenance, regretful,
   sorely disappointed, soured