childishness
chil·dish·ness
noun
1.
a property characteristic of a child
Origin
From Middle English childishnes, childisnes, equivalent to childish + -ness.
Related words
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.