D defs.my
Entry 1 sense Webster, 1913

Impasse

/(ăN`päs"; E. ĭm*pȧs")/ · Im·passe · IPA /ˈɪmpæs/
01 n. An impassable road or way; a blind alley; cul-de-sac; fig., a position or predicament affording no escape.
  1. 1.
    An impassable road or way; a blind alley; cul-de-sac; fig., a position or predicament affording no escape.
    “The issue from the present impasse will, in all probability, proceed from below, not from above.” — Arnold White.