a. | 1. | Extremely funny. |
Adj. | 1. | hysterical - characterized by or arising from psychoneurotic hysteria; "during hysterical conditions various functions of the human body are disordered"- Morris Fishbein; "hysterical amnesia" Synonyms: hysteric |
2. | hysterical - marked by excessive or uncontrollable emotion; "hysterical laughter"; "a mob of hysterical vigilantes" |