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Adjective: complaisant  kum'pley-sunt
  1. Passively willing to please others or accept what they do or suggest
    "A complaisant spouse who never argues"; "His complaisant attitude made him easy to work with"
     
  2. Lacking initiative or competitive drive; too easily satisfied
    "Complaisant companies were quickly outcompeted"; "The team's complaisant approach led to their defeat"

Sounds like: complacent