[1] : The Collaborative International Dictionary of English v.0.48

unserviceable \unserviceable\
   see serviceable.
see also:
serviceable 

[2] : WordNet (r) 2.0

unserviceable
     adj 1: not ready for service; "unserviceable equipment may be
            replaced" ant: serviceable
     2: impossible to use syn: unusable, unuseable
see also:
serviceable unusable unuseable 

[3] : Moby Thesaurus II by Grady Ward, 1.0

19 moby thesaurus words for "unserviceable":
   functionless, impractical, in disrepair, inapplicable, inoperable,
   inoperative, nonfunctional, nonutilitarian, otiose, out of order,
   out of whack, unconducive, unemployable, unfit, unhelpful,
   unsuitable, unusable, unworkable, useless

Unserviceable >> U Words
Unserviceable, definition of term: Unserviceable
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