submissive
US /səbˈmɪs.ɪv/
UK /səbˈmɪs.ɪv/

1.
submisso, obediente, dócil
ready to conform to the authority or will of others; meekly obedient or passive
:
•
She was always very submissive to her husband's wishes.
Ela sempre foi muito submissa aos desejos do marido.
•
The dog showed submissive behavior by rolling onto its back.
O cão mostrou comportamento submisso ao rolar de costas.