The Collaborative International Dictionary of English v.0.48:
Blotchy \Blotch"y\, a. Having blotches. [1913 Webster]WordNet (r) 3.0 (2006):
blotchy adj 1: marked with irregularly shaped spots or blots [syn: blotched, blotchy, splotched] 2: marred by discolored spots or blotches; "blotchy skin"