Synonyms for Deadlock:

n.

crisis, quagmire, tragedy, nightmare, ordeal, trouble, worst-case scenario, stress, battle. combination lock, bolt, draw, standoff, fastener, catch, tie, lock, keyhole, dead heat, latch, hasp, dead bolt, same. bye, clash, cup, close season, contest, crown, card, the Commonwealth Games, championship, challenge. deadlock (noun)
impasse, stalemate, standstill.
stalemate (noun)
impasse.
stalemate, impasse (noun)
draw, standstill, standoff, dead heat, pause, tie.
standstill (noun)
pause, standoff, tie.
state (noun)
impasse, stalemate, standstill.
stop (noun)
standstill.

Other synonyms:

dead heat, hasp, combination lock, dead bolt, keyhole. fastener, latch, pause. tie. bolt. lock. catch. stalemate
stalemate, standoff.
straits
crisis.
tie
tie.
Other relevant words:
challenge, bye, bolt, contest, cup, fastener, dead heat, nightmare, standoff, latch, draw, quagmire, tie, pause, lock, tragedy, stress, crown, ordeal, crisis, battle, catch, keyhole, card, trouble, championship, same, hasp, clash.

Usage examples for deadlock

  1. Columbus, returning to San Domingo after long and harassing struggles on the other end of the see- saw, gets news of this deadlock and at the same time has news from Fonseca in Spain of a far from agreeable character. – Christopher Columbus, Volume 6 And The New World Of His Discovery, A Narrative by Filson Young
  2. Here, then, is a pretty deadlock – The Doctor's Dilemma: Preface on Doctors by George Bernard Shaw
  3. He was as much convinced as they that this whole matter of the strike had of late come to a deadlock – Marcella by Mrs. Humphry Ward