Incorruptible

прилагательное 1) непортящийся Синоним(ы): non-perishable 2) вечный Синоним(ы): everlasting, eternal 3) неподкупный

Большой англо-русский словарь

Incorruptible

adjective incapable of corruption: as a. not subject to decay or dissolution b. incapable of being bribed or morally corrupted • incorruptibility nounincorruptible nounincorruptibly adverb

Merriam-Webster's Collegiate Dictionary