"Insatiableness" is a word in ENGLISH

insatiableness ENGLISH
Definition:

Greediness of appetite that can not be satisfied or
appeased; insatiability.

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avidity ENGLISH

Greediness; strong appetite; eagerness; intenseness of desire; as, to eat with avidity.

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carnivoracity ENGLISH

Greediness of appetite for flesh.

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greedy ENGLISH

Having a keen appetite for food or drink; ravenous; voracious; very hungry; -- followed by of; as, a lion that …

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gulosity ENGLISH

Excessive appetite; greediness; voracity.

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insatiable ENGLISH

Not satiable; incapable of being satisfied or appeased; very greedy; as, an insatiable appetite, thirst, or desire.

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rapacious ENGLISH

Avaricious; grasping; extortionate; also, greedy; ravenous; voracious; as, rapacious usurers; a rapacious appetite.

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voracious ENGLISH

Greedy in eating; very hungry; eager to devour or swallow; ravenous; gluttonous; edacious; rapacious; as, a voracious man or appetite; …

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