ADJECTIVE
lower in rank or position.
"his subordinate officers"
synonyms: lower-ranking · junior · lower · lesser · inferior · lowly · minor · supporting · second-fiddle

NOUN
a person under the authority or control of another within an organization.
synonyms: junior · assistant · second · second in command · number two · right-hand man/woman · deputy · aide · 
                    adjutant · subaltern · apprentice · underling · flunkey · minion · lackey · mate · inferior · sidekick · henchman · 
                    second fiddle · man/girl Friday
VERB
treat or regard as of lesser importance than something else.
"practical considerations were subordinated to political expediency"