dead end

/D EH1 D EH1 N D/
noun
  1. 1

    A street or path that goes nowhere or is blocked on one end.

    โ€œThat road comes to a dead end at the lake.โ€

  2. 2

    A position that offers no hope of progress.

    โ€œHer father suggested that she decline the job because it was a dead end.โ€

  3. 3

    A split end in the hair.

Source: https://en.wiktionary.org/wiki/dead%20end