Found 2 items, similar to childishness.
English → English (WordNet) Definition: childishness childishness n : a property characteristic of a child [syn: puerility]
English → English (gcide) Definition: Childishness Childishness \Child"ish*ness\, n. The state or quality of being childish; simplicity; harmlessness; weakness of intellect. [1913 Webster]