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 (hĕb′ĭ-to͞od′, -tyo͞od′)
Dullness of mind; mental lethargy.

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

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


rare mental dullness or lethargy
[C17: from Late Latin hebetūdō, from Latin hebes blunt]
ˌhebeˈtudinous adj


(ˈhɛb ɪˌtud, -ˌtyud)

the state of being dull; lethargy.
[1615–25; < Late Latin hebetūdō= Latin hebet-, s. of hebes dull + -ūdō; see -tude]
heb`e•tu′di•nous, adj.


the state, condition, or quality of being dull, enervated, or lethargie. — hebetudinous, adj.
See also: Fatigue
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.hebetude - mental lethargy or dullness
lassitude, lethargy, sluggishness - a state of comatose torpor (as found in sleeping sickness)


A deficiency in mental and physical alertness and activity:
References in classic literature ?
In the doorway Stevie, calmed, seemed sunk in hebetude.
One of his canons, you know, was that "the indulgence which prevents a greater pleasure, or produces a greater pain, is to be avoided." Your love of repose will lead, in its progress, to a suspension of healthy exercise, a relaxation of mind, an indifference to everything around you, and finally to a debility of body, and hebetude of mind, the farthest of all things from the happiness which the well-regulated indulgences of Epicurus ensure; fortitude, you know, is one of his four cardinal virtues.
Or quand Siltana, par amour pour Klodonis, lui donne du sel a gouter et que ce dernier sort de son hebetude, la premiere reaction de ce mort redevenu vivant est de donner une gifle epouvantablement forte a sa liberatrice : <<Li koupe Siltana youn patasouel krazebrizedemantibileblayivide>> (FRANKETIENNE, 1975: 295) (Il lui flanqua une gifle-a ecraser-briser-detruire-jeter par terre-a couper le souffle).