childishness childishly • childkind · · · Info · Definitions · Synonyms · Characters · · childishness · · Text Latin · · Script 12 · · Length Definitions · · · (noun) a property characteristic of a child. Synonyms: puerility. · · Noun Definition 1 Synonyms · · · puerility · · Synonym 1 Characters · · c latin small letter c U+0063 d latin small letter d U+0064 e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E s latin small letter s U+0073