showstopper

Plural: showstoppers

Noun

• an act so striking or impressive that the show must be delayed until the audience quiets down
• something that is strikingly attractive or has great popular appeal
  • "the brilliant orange flowers against the green foliage were a showstopper"
• A performance or segment of a theatrical production that induces a positive audience reaction strong enough to pause the production.
• Any impediment that prevents all further progress.
• Any impediment that prevents all further progress.
• A software bug that must be fixed before any further development is possible.

Synonyms

show-stopper, stopper, blocker

Related Words

deal breaker, showstopping