1 adj Someone who is hysterical is in a state of uncontrolled excitement, anger, or panic.
Police and bodyguards had to protect him as the almost hysterical crowds struggled to approach him...
hysterically adv ADV with v, ADV adj/adv
I don't think we can go round screaming hysterically: `Ban these dogs. Muzzle all dogs.'
2 adj Someone who is hysterical is in a state of violent and disturbed emotion that is usually a result of shock.
I suffered bouts of really hysterical depression.
I was curled up on the floor in a corner sobbing hysterically.
3 adj Hysterical laughter is loud and uncontrolled.
INFORMAL usu ADJ n
I had to rush to the loo to avoid an attack of hysterical giggles.
hysterically adv ADV with v
She says she hasn't laughed as hysterically since she was 13.
4 adj If you describe something or someone as hysterical, you think that they are very funny and they make you laugh a lot.
INFORMAL Paul Mazursky was Master of Ceremonies, and he was pretty hysterical.
hysterically adv ADV adj
It wasn't supposed to be a comedy but I found it hysterically funny.
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