insatiable desire

Translations
ненасытное желание
He has an insatiable desire for success.
У него ненасытное желание к успеху.
Definitions
An insatiable desire refers to an intense and unquenchable longing or craving for something, where the individual feels that no amount of satisfaction can fulfill their yearning.
Words
insatiable

adjective
ненасытное
desire

noun
желание