relativism
Concise Oxford English Dictionary © 2008 Oxford University Press:
relativism /ˈrɛlətɪvɪz(ə)m/
▶noun the doctrine that knowledge, truth, and morality exist in relation to culture, society, or historical context, and are not absolute.
– derivatives
relativist noun.
relativist noun.
'relativism' also found in these Oxford entries:

