psychotic /ˌsaɪˈkɒtɪk/adjective 2noun 1forms 3 adjective2 •Of, related to, or suffering from psychosis.Direct evidence on psychotic behavior is the presence of either delusions or hallucinations (without insight into their pathological nature). — 1995 •(informal) Out of control, bizarre, or crazy.Full-bodied tribal rhythms, weird bendy bass lines, screechy high-end guitar melodies, and more psychotic lyrics about "Tension," "Butchers," and "Madness." — 2012 noun1 •A person affected by psychosis. formspsychotics · more psychotic · most psychotic