1) Absence or lack of symmetry 
from http://www.chch.ox.ac.uk/modules/standard/viewpage.asp?id=241 ...
• (n.) Absence or defect of symmetry; asymmetry.
Synonym: asymmetry. ... Origin: dis-+ symmetry ... (05 Mar 2000) ... 
Dis·sym'me·try noun [ Prefix dis- + symmetry .] Absence or defect of symmetry; asymmetry. 
Type: Term Pronunciation: dis-sim′ĕ-trē Synonyms: asymmetry
absence or lack of symmetry.