hysterical
hy-ster-i-cal
adjective
Extremely funny, causing uncontrollable laughter in others.
"The comedian's routine was absolutely hysterical."
adjective
In a state of uncontrolled extreme emotion, often laughter or crying.
"She became hysterical after hearing the news."
Thesaurus
Synonyms: neurotic, hysteric, psychoneurotic, agitated