Definition of babyishness in English:

babyishness

See synonyms for babyishness on Thesaurus.com

noun

derogatory

See babyish

‘We can become enraged at schoolchildren who want to hold onto their babyishness, in much the same way as we are infuriated by prolonged breastfeeding.’
  • ‘You can't help but be struck by the sheer befuddled babyishness of the apologists.’
  • ‘What struck me most about this story was not its babyishness: it was that such behaviour has become an anachronism.’
  • ‘One of the attendees (11 years old) would not participate due to the babyishness of the bounce houses.’
  • ‘Though the change was slight, he saw that they had both lost a little of their babyishness.’