Synonyms of 'hereditary'
In men, hair loss is hereditary.
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You use ancestral to refer to a person's family in former times, especially when the family is important and has property or land which they have had for a long time.
the family's ancestral home
Inborn qualities are natural ones which you are born with.
It is clear that the ability to smile is inborn.
Thesaurus for hereditary from the Collins English Thesaurus
A hereditary characteristic or illness is passed on to a child from its parents before it is born.