Intelligent Vocabulary: Similar terms and phrases Bodily and mentally mature & immature Grownup adulting getting old babyish childish immature immaturely immaturity infantile juvenile maturity overgrown petulance petulancy petulant petulantly puerility secondary sexual characteristic sophomoric young at heart idiom See much more outcomes » Onze redactie maakt al jaren uitleg­online vi... https://mature52.com