闕疑

阙疑
quēyí
  1. (literary, of a difficult question) to be left unanswered or unresolved
  2. to be left unanswered or unresolved

Wiktionary

Entry Composition

=1 闕 Què surname Que
=1 闕 quē
  1. used in place of 缺 (old)
  2. mistake
=1 闕 què
  1. Imperial city watchtower (old)
  2. fault
  3. deficiency
=1 闕 jué alternative form of 掘 (jué, “to dig; to excavate”)
2 疑 yí (bound form) to doubt; to suspect