WordNet (r) 3.0 (2006):

sick of
    adj 1: having a strong distaste from surfeit; "grew more and
           more disgusted"; "fed up with their complaints"; "sick of
           it all"; "sick to death of flattery"; "gossip that makes
           one sick"; "tired of the noise and smoke" [syn:
           disgusted, fed up(p), sick(p), sick of(p), tired
           of(p)]

Moby Thesaurus II by Grady Ward, 1.0:

46 Moby Thesaurus words for "sick of":
   allayed, blase, cloyed, crammed, disgusted, dispirited, engorged,
   fed-up, full, full of, glutted, good and tired, gorged, irked,
   jaded, life-weary, melancholic, melancholy, overfed, overfull,
   overgorged, oversaturated, overstuffed, replete, sated, satiated,
   satisfied, saturated, sick, slaked, splenetic, stuffed,
   supersaturated, surfeited, tired, tired of, tired of living,
   tired to death, wearied, weariful, weary, weary unto death,
   with a bellyful, with a snootful, with enough of, world-weary