Synonyms of showstopper

1 Syllable
stall, jam, stay, stop, check, bind, lag, wait
2 Syllables
hold-up, logjam, hangup, dawdling, tie-up, holdup, delay, holding, tarrying, problem, setback
3 Syllables
retardment, surcease, detention, detainment, adjournment, lingering, loitering, remission, obstruction, demurral, downtime, suspension, cunctation, interval, stoppage, hindrance, reprieve
4 Syllables
impediment, prorogation, retardation, moratorium, filibuster, postponement
5 Syllables
procrastination, discontinuation