child of nature—(euph.) a person in an uncivilized or uncultivated state:
- She felt that he wanted her to be a child of nature. That suited her very well.
natural child—
1. a child actually begotten by one in contrast to adopted:
- With little prospect of natural children, we applied for adoption all the sooner.
2. a child born out of wedlock:
- Full equality has been introduced between legitimate and natural children, between married and unmarried couples.