1. a person who believes that matter does not exist or that only mind or spirit is real
Usage: philosophy; formal

1. of, relating to, or characteristic of the belief that only mind or spirit is real
Usage: philosophy; formal

Examples

• Berkeley was an immaterialist who argued that physical objects exist only as ideas in the mind.
• The immaterialist position challenges the common assumption that the physical world exists independently of perception.
• She adopted an immaterialist philosophy after studying 18th-century metaphysics.
• Immaterialist thinkers have long debated the nature of consciousness and reality.
• His immaterialist views led him to question whether matter has any fundamental existence.