inborn (adj.)

• atavistic
• bodily
• born
• coeval
• congenital
• connate
• connatural
• constitutional
• deep-rooted
• deep-seated
• genetic
• hereditary
• inbred
• incarnate
• indigenous
• ingrained
• inherent
• inherited
• innate
• instinctive
• native
• natural
• organic
• physical
• primal
• temperamental