Don't say problematic.

Usually, problematic is nothing more than vague jargon. It is an example of borrowing from the often unsavory jargon of philosophy or education in order to sound erudite. Perhaps the word is justifiable when you mean "of uncertain outcome" (things could go one way or the other, as in an election), but that still doesn't give it a place in graceful, precise language.

Use—well, use a word that says what you mean. When people say that something is problematic, they usually mean something more specific. Pick the word that describes the problem precisely: ambiguous, arduous, arguable, challenging, complex, confusing, debatable, difficult, disputed, doubtful, dubious, equivocal, questionable, hard, knotty, moot, puzzling, uncertain.


You want your reader to know exactly what you mean, don't you?

You probably mean one of the words I suggest; tell your reader which one.