Definitions for "Childfree"
Anyone who has chosen not to have children, for whatever reason.
Celebratory banner adopted by adults who have made conscious decision not to have children; often rooted in desire to keep living as a child, except with all the freedoms and fewer of the responsibilities of adulthood. Preferred by advocates over childless.
Childfree is a term used to describe people who neither have, nor desire children. An alternative description is "childless by choice".