Antonyms for "figment imagination" may include reality, fact, truth, actuality, existence, substance, and materiality. Unlike figments of imagination, these words refer to tangible and verifiable objects, ideas or concepts. Reality, for instance, refers to things that truly exist or events that truly happened, while fact and truth refer to information that is based on evidence or proven knowledge. Materiality, on the other hand, refers to the physical nature of objects or substances, while existence refers to the state of being alive or tangible. In short, the antonyms for "figment imagination" describe the opposite of imaginary or fictional concepts and experiences.