#necessitarian  someone who does not believe the doctrine of free will
  exclusion:  libertarian
  supertype:  philosopher  a specialist in philosophy
  subtype:  Calvinist  an adherent of the theological doctrines of John Calvin
     subtype:  Huguenot  a French Calvinist of the 16th or 17th centuries
  subtype:  fatalist__determinist__predestinationist  anyone who submits to the belief that they are powerless to change their destiny

No statement uses or specializes necessitarian; click here to add one.