of or characterized by solipsism, or the theory that only the self exists, or can be proved to exist: Her treatment philosophy dealt with madness as a complete, self-contained, solipsistic world that sane people are not able to enter.

Is solipsistic a noun?

solipsism noun - Definition, pictures, pronunciation and usage notes | Oxford Advanced Learner's Dictionary at OxfordLearnersDictionaries.com.

What does the word solipsist mean?

Full Definition of solipsism

: a theory holding that the self can know nothing but its own modifications and that the self is the only existent thing also : extreme egocentrism.