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

problematic \prob`lemat"ic\, problematical \prob`lemat"ical\,
   a. l. problematicus, gr. ?: cf. f. probl'ematique.
   1. having the nature of a problem; not shown in fact;
      questionable; uncertain; unsettled; doubtful; as, his
      theory is problematic because it fails to explain several
      facts. -- prob`lemat"ically, adv.
      1913 webster

            diligent inquiries into remote and problematical
            guilt leave a gate wide open to . . . informers.
                                                  --swift.
      1913 webster

   2. having characteristics which will create difficulties or
      undesirable consequences; -- of a proposed action; as, the
      proposed law is problematic because it will cause many
      people to lose their jobs.
      pjc
see also:
prob`lemat"ically 

[2] : WordNet (r) 2.0

problematic
     adj 1: open to doubt or debate; "if you ever get married, which
            seems to be extremely problematic" syn: debatable,
            problematical
     2: making great mental demands; hard to comprehend or solve; "a
        baffling problem"; "i faced the knotty problem of what to
        have for breakfast"; "a problematic situation at home"
        syn: baffling, knotty, problematical
see also:
debatable problematical baffling knotty 

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

89 moby thesaurus words for "problematic":
   a bit thick, a bit thin, absurd, ambiguous, arguable, at issue,
   baffling, bewildering, beyond belief, bothering, confounding,
   confusing, confutable, conjectural, contestable, controversial,
   controvertible, debatable, deniable, difficult, discomposing,
   disconcerting, dismaying, disputable, disputed, distracting,
   disturbing, doubtable, doubted, doubtful, dubious, dubitable,
   embarrassing, enigmatic, hairy, hard of belief, hard to believe,
   iffy, implausible, in dispute, in doubt, in dubio, in question,
   inconceivable, incredible, indecisive, intricate, mistakable, moot,
   mysterious, mystifying, not deserving belief, open, open to doubt,
   open to question, open to suspicion, passing belief, perplexing,
   perturbing, precarious, preposterous, problematical, puzzling,
   questionable, questioned, refutable, ridiculous, sensitive,
   speculative, staggering belief, suppositional, suspect, suspicious,
   tall, thick, thin, touchy, tricky, unbelievable, uncertain,
   unconvincing, undecided, unearthly, ungodly, unimaginable,
   unsettled, unthinkable, unworthy of belief, upsetting

Problematic >> P Words
Problematic, definition of term: Problematic
problematic_pag1.html