asymmetry

US /eɪˈsɪm.ə.tri/
UK /eɪˈsɪm.ə.tri/
"asymmetry" picture
1.

lack of equality or equivalence between corresponding parts or aspects of something; lack of symmetry.

:
The architect intentionally designed the building with a striking asymmetry.
The slight asymmetry in her smile made her even more charming.