hebetudinous

heb·e·tude

 (hĕb′ĭ-to͞od′, -tyo͞od′)

n.

Dullness of mind; mental lethargy.

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[Late Latin hebetūdō, from Latin hebes, hebet-, dull.]

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heb′e·tu′di·nous (-to͞od′n-əs, -tyo͞od′-) adj.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Thesaurus

hebetudinous

adjective

1. Lacking mental and physical alertness and activity:

lethargic, sluggish, stupid, stuporous, torpid.

Slang: dopey.

2. Lacking in intelligence:

blockheaded, dense, doltish, dumb, obtuse, stupid, thickheaded, thick-witted.

Informal: thick.

Slang: dimwitted, dopey.

The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.