noun

Someone who supports a particular party, person, or set of ideas.

he was a strong adherent of monetarism

follower,supporter,upholder,defender,advocate,disciple,votary,partisan,member,friend,stalwart

adjective

Sticking fast to an object or surface.

the eggs have thick sticky shells to which debris is often adherent

adhesive,sticky,sticking,adhering,clinging,tacky,gluey,gummy,gummed,cohesive,viscous,viscid,glutinous,mucilaginous