A person who never laughs; someone with a stern, serious disposition who is immune to humor.
From Greek 'a-' (without) plus 'gelas' (laughter), with the agent suffix '-ast' (from Greek '-astēs'). The term appears in Renaissance literature and classical scholarship but is now archaic and rarely used in modern English.
An agelast is basically the opposite of a comedian—it's a real (if archaic) word for someone so serious they never crack a smile, which Aristotle apparently found philosophically interesting enough to discuss!
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