aporia

noun2

1. •
   An apparently insoluble contradiction or tension, especially in a text's meaning; a logical impasse suggested by a text or speaker; a paradox.

   • EL James's multimillion selling series of novels ‘encodes the aporias of heterosexual relationships’, according to Professor Eva Illouz[.] — 2014
2. •
   (rhetoric) An expression of deliberation with oneself regarding uncertainty or doubt as to how to proceed.

   • Aporia oft in doubt and fear will rest, And reason with itself what may be best. — 1835