Existing at birth is a term used to describe traits or characteristics that are present from the moment of birth. INBRED, CONGENITAL, and INBORN are all terms used to describe this phenomenon. INBRED refers to traits that are passed down through generations of a family, while CONGENITAL describes traits that are present due to genetic or environmental factors. INBORN is another term for existing at birth, and is used to describe traits that are present from the moment of birth.