idiopathically

/ˌɪdiəˈpæθɪkli/
adverb
  1. In a way that relates to a disease or condition with no known cause.
    • The rash developed idiopathically, leaving specialists puzzled about its origin.
    • The patient's fever appeared idiopathically, with no infection or illness found.
    • Doctors sometimes diagnose a condition idiopathically when tests show no clear reason.
What does "idiopathically" mean? | whatsthatwordmean | whatsthatwordmean