Displaying mental lethargy or dullness.(adjective)
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Use "hebetudinous" in a sentence
"One day you learn what ‘hebetudinous’ means, then you learn how to use Google."
"We BLASTED our hebetudinous head of state over that."
"How hebetudinous, and logic-challenged are those who perniciously, intoxicate, themselves and their neighbors with such poisonous products with affects every single person who inhales them?"