immaterialistn.

1702 H. Lee Anti-scepticism ii. xxvii. 125 As for those that place Thinking in an immaterial Substance only... There's Work enough cut out for the Immaterialists.

1724 J. Swift Let. 3 Sept. in Wks. (1860) I. 137 Dr. George Berkely..going to England very young..became the founder of a sect there called the Immaterialists.

1755 Gentleman's Mag. Mar. 123/2 His lordship [sc. Bolingbroke] takes a great deal of pains to prove, that the soul of man is not a principle distinct from the body, and that the arguments urged by the most celebrated immaterialists, are not conclusive.

1822 J. M. Good Study Med. III. 41 Aristoxenus..pleased neither the other materialists nor the immaterialists of his day.

1869 Rainbow Nov. 495 The principal and most fundamental articles of the Immaterialist's psychological creed are three in number. (1.) Man is a dichotomous or twofold being, consisting of an immaterial soul and a material body. [etc.]

1899 C. D. Punchard Helps Study of L. Hunt's Ess. 46 Immaterialists believe that the objects do not exist of themselves, but are merely mental effects created by the operation of the mind within.

1934 W. Lewis Men without Art ii. iv. 144 No one calls himself or herself an ‘immaterialist’, any more than they are very anxious to have themselves called an ‘idealist’.

1952 R. D. Mosier Amer. Temper i. v. 64 The immaterialist was unable to conceive of the creation of matter without consciousness, or of the motion of its inert substance without spirit.

2010 D. J. Soccio Archetypes of Wisdom (ed. 7) x. 285 Only ideas exist, and ideas are mental states, not material objects. This makes Berkeley an idealist or immaterialist.