a·sym·met·ric 
(ā′sĭ-mĕtrĭk) also a·sym·met·ri·cal (-rĭ-kəl)
(ā′sĭ-mĕtrĭk) also a·sym·met·ri·cal (-rĭ-kəl)adj.
1.
a. Having no balance or symmetry: an asymmetric design.
b. Uneven in distribution.
2.
a. Existing or occurring between two incommensurate entities, especially to the detriment of one.
b. Characterized by an imbalance in power between two opponents in an armed conflict, especially one in which a weaker force uses unconventional means, such as guerilla or terrorist tactics: asymmetric warfare.
3. Chemistry Of or relating to a carbon atom having four different atoms or structural groups attached to it, resulting in an unbalanced spatial arrangement of atoms in a molecule, so that the molecule cannot be superimposed on its mirror image; chiral.
a′sym·metri·cal·ly adv.
a·symme·try (ā-sĭmĭ-trē) adv.