Cosmothetic idealists

Cosmothetic Cos`mo*thet"ic (k?z`m?-th?t"?k), a. [Gr. ko`smos universe + ??? to place or arrange.] (Metaph.) Assuming or positing the actual existence or reality of the physical or external world. [1913 Webster]

{Cosmothetic idealists} (Metaph.), those who assume, without attempting to prove, the reality of external objects as corresponding to, and being the ground of, the ideas of which only the mind has direct cognizance. [1913 Webster]

The cosmothetic idealists . . . deny that mind is immediately conscious of matter. --Sir W. Hamilton. [1913 Webster]