#informality  a manner that does not take forms and ceremonies seriously
  exclusion:  formalness
  supertype:  personal_manner__personalmanner__manner  a way of acting or behaving
  subtype:  casualness__familiarity  a casual manner
     subtype:  slanginess  casualness in use of language
  subtype:  unceremoniousness__unceremoniousnes  an unceremonial manner

No statement uses or specializes informality; click here to add one.