Similar word to unalienable:

built-in, characteristic, congenital, connate, constitutional, deep-rooted, deep-seated, distinctive, elementary, essential, fixed, fundamental, genetic, immanent, implicit, in the grain, inborn, inbred, inbuilt, indigenous, indispensable, individual, indwelling, ingrained, inherited, innate, inner, instinctive, integral, integrated, internal, intimate, intrinsic, inward, latent, native, natural, original, part and parcel, resident, running in the family, subjective, unalienable