asymmetrical
adjective
us/ˌeɪ·sɪˈme·trɪ·kəl/(alsoasymmetric)geometry
havingpartson eithersideorhalfthat do notmatchor are not the samesizeorshape:
The building's asymmetricalsilhouettefeaturesasingletoweron onecorner.
chemistry,geometry
An asymmetricalcarbonatomis one that isattachedto four differentatomsorgroupsofatoms.