A less-extreme manifestation of mania, characterized by rapid speech, impulsivity, reduced need for sleep, overspending, hyperactivity, et cetera. Psychosis is not present. In Bipolar I patients, hypomania can be the precursor to full-blown mania.
"Honey? When you're talking at two hundred miles per hour about the philosophy of grape juice, I know you're hypomanic."
by lp March 24, 2005