puerile /pūˈər-īl or (US) -il/

1. Relating to children (rare)
2. Childish
3. Trifling
4. Silly

puerilism /pūˈər-il-izm/ noun (psychology)

Reversion to a childlike state of mind

pūerility /-ilˈi-ti/ noun

1. The quality of being puerile
2. Something that is puerile
3. A childish expression
4. An instance of childishness or foolish triviality

• sort out the men from the boys
• sorts
• sorus
• SOS
• sosatie
• sosaties
• SOSed
• SOSes
• SOSing
• so so
• so-so
• soss
• sossed
• sosses
• sossing
• sossings
• sostenuto
• sostenutos
• sot
• SOT
• Sotadean
• Sotadic
• soterial
• soteriological
• soteriologies