Letargia
n.The state of being destitute of life, vigor, spirit, activity, etc.; dullness; inertness; languor; coldness; vapidness; indifference; as, the deadness of a limb, a body, or a tree; the deadness of an eye; deadness of the affections; the deadness of beer or cider; deadness to the world, and the like.
n.unresponsiveness, quality generic term, responsiveness antonym noun, inelasticity generic term noun, inanimateness generic term, lifelessness generic term
Vogais: eae
Consoantes: ddnss
deaden, dean, dene, dead-on, detainee, dan, demain, demean, den, detain.