cliffhanger

or cliff-hang·er

[ klif-hang-er ]
/ ˈklɪfˌhæŋ ər /

noun

a melodramatic or adventure serial in which each installment ends in suspense in order to interest the reader or viewer in the next installment.
a single installment in such a serial.
a suspenseful movie, novel, etc.
the suspenseful ending itself.
a situation or contest of which the outcome is suspensefully uncertain up to the very last moment: The game was a cliffhanger, but our team finally won.

Origin of cliffhanger

An Americanism dating back to 1935–40

British Dictionary definitions for cliff-hanger

cliffhanger
/ (ˈklɪfˌhæŋə) /

noun

  1. a situation of imminent disaster usually occurring at the end of each episode of a serialized film
  2. the serialized film itself
a situation that is dramatic or uncertain

Derived forms of cliffhanger

cliffhanging, adjective