Γελᾷ δ' ὁ μωρός, κἄν τι μὴ γέλοιον ᾖ → The fool laughs even when there's nothing to laugh at
ἄτρυτος, γυιοβαρής, πολυάϊξ, καματηρός, ἔγκοπος, κοπώδης, πραγματώδης, κοπιαρός, κοπιώδης
