harmlessness
noun /ˈhɑːmləsnəs/
  /ˈhɑːrmləsnəs/
[uncountable]- the quality of being unable or unlikely to cause damage or harm
- Their job is to reassure people about the harmlessness of the insects.
 
 - the quality of being unlikely to upset or offend anyone
- The band's harmlessness has always been part of their charm.