slavish
/ˈsleɪvɪʃ/Definitions
1. adjective
excessively submissive or obedient to authority; servile; unthinkingly devoted to an idea or a person
“The author criticized the politician for her slavish devotion to her party’s ideology.”
2. noun
a servile or submissive attitude or behavior
“The company’s slavish adherence to outdated management practices hindered its ability to innovate.”