noun
nihilist
NYE-ih-list/ˈnaɪɪlɪst/
A person who rejects the idea that life has inherent meaning or moral value.
The nihilist sets aside inherited symbols of wealth and status.

Etymology
Nihil, 'nothing,' combines with an adherent ending to label a person by a stance of negation. Here that means rejecting accepted beliefs, values, or meaning.
In context
he's basically a nihilist as well
More examples
- As a nihilist, she denies that moral rules have objective authority.
- He calls himself a nihilist but still finds joy in friendship.
- The novel's nihilists see no ultimate purpose in human existence.
Forms
nihilist · nihilists
nihilism noun — Rejection of inherent meaning or moral value.
nihilistic adjective — Rejecting inherent meaning or moral value.