inhaltschwer

From LSJ

γελᾷ δ' ὁ μωρός, κἄν τι μὴ γέλοιον ᾖ → the fool laughs even when there's nothing to laugh at

Source

German > Latin

inhaltschwer, gravis. – inh. Gedanken, sententiarum gravitas; sententiae graves.