A person who believes that human effort and life are fundamentally futile or meaningless.
From futile plus the suffix '-itarian' (following the pattern of utilitarian), creating a philosophical position analogous to utilitarianism but focused on futility.
Futilitarian is a word that maybe should exist more in philosophy—it describes a legitimate worldview somewhere between nihilism and pessimism, yet it almost never appears in published works, making it a hidden philosophical position.
Complete word intelligence in one call. Free tier — 50 lookups/day.