adherent
 oxford
 views  updated May 18 2018ad·her·ent  / adˈhi(ə)rənt; -ˈher-/ •
n. someone who supports a particular party, person, or set of ideas: he was a strong adherent of monetarism.•
adj. sticking fast to an object or surface.DERIVATIVES: ad·her·ence n.
 The Oxford Pocket Dictionary of Current English