figurative. circular insanity: a mental disease characterized by alternating phases of elation and depression; manic-depressive psychosis; = cyclot…

Manic-depressive mental illness; bipolar disorder.

a condition marked by cyclic alternations of mood from exhilaration to depression with a tendency, when aggravated, to manic-depression.

a form of mental illness characterized by one or more episodes of mania typically accompanied by one or more episodes of major depression; = manic…