Definition of particularism
noun
[mass noun] 1exclusive attachment to one’s own group, party, or nation: such barriers are created by local particularism and privilege [count noun]:the decomposition of the old Europe has highlighted nationalistic and ethnic particularisms the principle of leaving each state in an empire or federation free to govern itself and promote its own interests, without reference to those of the whole.
2 Theology the doctrine that some but not all people are elected and redeemed.