Nihilism
As Friedrich Nietzsche uses the word
The condition in which the highest values devalue themselves, and nothing seems worth anything at all, unless new values are won.
From Friedrich Nietzsche.
More from Friedrich Nietzsche
Apollo and Dionysus · The Death of God · Eternal Recurrence · The Overman · The Revaluation of All Values · The Three Metamorphoses · The Will to Power