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

unconvincing \unconvincing\
   see convincing.
see also:
convincing 

[2] : WordNet (r) 2.0

unconvincing
     adj 1: not convincing; "unconvincing excuses"; "as unconvincing as
            a forced smile" ant: convincing
     2: having a probability to low to inspire belief syn: improbable,
         unbelievable, unlikely
see also:
convincing improbable unbelievable unlikely 

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

37 moby thesaurus words for "unconvincing":
   a bit thick, a bit thin, absurd, beyond belief, doubtable,
   doubtful, dubious, dubitable, flimsy, hard of belief,
   hard to believe, implausible, improbable, inconceivable,
   incredible, not deserving belief, open to doubt, open to suspicion,
   passing belief, preposterous, problematic, questionable,
   ridiculous, staggering belief, suspect, suspicious, tall, thick,
   thin, unbelievable, unearthly, ungodly, unimaginable,
   unsubstantial, unthinkable, unworthy of belief, weak

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