inborn

innate, inborn, inbred, congenital, hereditary mean not acquired after birth. innate applies to qualities or characteristics that are part of one's inner essential nature <an innate sense of fair play>. inborn suggests a quality or tendency either actually present at birth or so marked and deep-seated as to seem so <her inborn love of nature>. inbred suggests something either acquired from parents by heredity or so deeply rooted and ingrained as to seem acquired in that way <inbred political loyalties>. congenital and hereditary refer to what is acquired before or at birth, the former to things acquired during fetal development and the latter to things transmitted from one's ancestors <a congenital heart murmur> <eye color is hereditary>.