necessitarian

CIDE DICTIONARY

necessitarian, a. 

 Of or pertaining to the doctrine of philosophical necessity in regard to the origin and existence of things, especially as applied to the actings or choices of the will; -- opposed to libertarian.  [1913 Webster]

necessitarian, n. 

 One who holds to the doctrine of necessitarianism.  [1913 Webster]

OXFORD DICTIONARY

necessitarian, n. & adj. Philos.
--n. a person who holds that all action is predetermined and free will is impossible.
--adj. of or concerning such a person or theory (opp. LIBERTARIAN).

Derivative

necessitarianism n.

ROGET THESAURUS

necessitarian

Necessity

N necessity, involuntariness, instinct, blind impulse, inborn proclivity, innate proclivity, native tendency, natural tendency, natural impulse, predetermination, necessity, necessitation, obligation, compulsion, subjection, stern necessity, hard necessity, dire necessity, imperious necessity, inexorable necessity, iron necessity, adverse necessity, fate, what must be, destiny, destination, fatality, fate, kismet, doom, foredoom, election, predestination, preordination, foreordination, lot fortune, fatalism, inevitableness, spell, star, stars, planet, planets, astral influence, sky, Fates, Parcae, Sisters three, book of fate, God's will, will of Heaven, wheel of Fortune, Ides of March, Hobson's choice, last shift, last resort, dernier ressort, pis aller, necessaries, necessarian, necessitarian, fatalist, automaton, necessary, needful, fated, destined, elect, spellbound compulsory, uncontrollable, inevitable, unavoidable, irresistible, irrevocable, inexorable, avoidless, resistless, involuntary, instinctive, automatic, blind, mechanical, unconscious, unwitting, unthinking, unintentional, impulsive, necessarily, of necessity, of course, ex necessitate rei, needs must, perforce, nolens volens, will he nil he, willy nilly, bon gre mal gre, willing or unwilling, coute que coute, faute de mieux, by stress of, if need be, it cannot be helped, there is no help for, there is no helping it, it will be, it must be, it needs to be, it must be so, it will have its way, the die is cast, jacta est alea, che sara sara, it is written, one's days are numbered, one's fate is sealed, Fata obstant, diis aliter visum, actum me invito factus, non est meus actus, aujord'hui roi demain rien, quisque suos patimur manes, The moving finger writes and having writ moves on, Nor all thy piety nor wit shall draw it back to ca.