hebetudinous

As adjectives the difference between stupid and hebetudinous

is that stupid is lacking in intelligence or exhibiting the quality of having been done by someone lacking in intelligence while hebetudinous is displaying mental lethargy or dullness.

As an adverb stupid

is (slang|dated) extremely.

As a noun stupid

is a stupid person; a fool.

As a noun taxonomy

is the science or the technique used to make a classification.

As an adjective hebetudinous is

displaying mental lethargy or dullness.

As a noun dullness

is the quality of being slow to understand things.

As an adjective hebetudinous is

displaying mental lethargy or dullness.

As a noun lethargy

is (pathology) a condition characterized by extreme fatigue or drowsiness, or prolonged sleep patterns.

As an adjective hebetudinous is

displaying mental lethargy or dullness.

As a noun mental

is moron.

As an adjective hebetudinous is

displaying mental lethargy or dullness.