#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.