Answer: aporia

AnswerCrossword Clue
APORIAFigure of speech, denoting doubt.
aporiathe expression of a simulated or real doubt, as about where to begin or what to do or say
aporiain rhetoric, a professed doubt
aporiadifficulty determining the truth of an idea due to equally valid arguments for and against it.
aporiadifficulty encountered in establishing the theoretical truth of a proposition, created by the presence of evidence both for and against it