conformist

conformist

adj.
  1. marked by conformity or convention; not corresponding to current customs or rules or styles; as, underneath the radical image teenagers are surprisingly conformist. Opposite of nonconformist.
  2. same as conforming.

Conformist

n.
  1. One who conforms or complies; esp., one who conforms to the Church of England, or to the Established Church, as distinguished from a dissenter or nonconformist.
    A cheeful conformist to your judgment.