adj.
Pronunciation: ˌ an-t ē -s ə - ' me-trik, ˌ an- ˌ t ī
Function: adjective
Date: 1923
: relating to or being a relation (as “ is a subset of ” ) that implies equality of any two quantities for which it holds in both directions <the relation R is antisymmetric if aRb and bRa implies a = b >