Hypergelast

Origin

From Ancient Greek ὑπέρ ("over") + γελαστής ("laugher"), from γελάω ("I laugh").

Full definition of hypergelast

Noun

1. someone who laughs excessively."America had become a laughing nation, a country of frivolists and hypergelasts, a culture dangerously out of control." - Henry Jenkins; What Made Pistachio Nuts?; Columbia University Press; 1992.

Antonyms

• (someone who laughs excessively) agelast

Synonyms

• (someone who laughs excessively) cachinnator