subservient vs instrumental

subservient and instrumental both are adjectives.

Word	Noun	Adjective	Verb	Adverb
subservient	No	Yes	No	No
instrumental	No	Yes	No	No

As adjectives, subservient and instrumental are synonyms defined as:

Other synonyms of subservient include implemental.

subservient (adjective)	instrumental (adjective)
serving or acting as a means or aid	relating to or designed for or performed on musical instruments
abjectly submissive; characteristic of a slave or servant	serving or acting as a means or aid
compliant and obedient to authority