1. (

• deadlock ,
• dead_end ,
• impasse ,
• stalemate ,
• standstill

) a situation in which no progress can be made or no advancement is possible; "reached an impasse on the negotiations" ;

2. (

• blind_alley ,
• cul_de_sac ,
• dead-end_street ,
• impasse

) a street with only one way in or out ;