1. (noun) cul, cul de sac, dead end
a passage with access only at one end
Synonyms: dead-end street, cul, cul de sac, deadlock, stalemate, blind alley, dead end, standstill, impasse
Antonyms: active
2. (adj) deadlock, dead end, impasse, stalemate, standstill
a situation in which no progress can be made or no advancement is possible
Synonyms: standstill, cul, dead-end street, cul de sac, stand, deadlock, stalemate, blind alley, dead end, tie-up, impasse
Antonyms: active
3. (adj) dead-end
lacking opportunities for development or advancement
Antonyms: active
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Synonyms for dead end 
