A metaphysical doctrine doubting the presence of matter.
The metaphysical denial for the existence associated with the material world
The doctrine that immaterial substances or spiritual being exist, or tend to be possible.
The doctrine that outside bodies could be paid down to mind and some ideas in a mind; any doctrine against materialism or phenomenalism, esp. a method that maintains the immateriality of the heart; idealism; esp., Bishop Berkeley's theory of idealism.
The doctrine that immaterial substances or spiritual beings exist or are possible.
The doctrine that there is no product globe, but that all things occur just inside head; idealism.