Being extrinsic to generally refers to something that is not an essential or inherent part of a particular thing or system. It implies that something is external to the nature of that particular thing and can be easily removed or replaced without changing its essence. Alternatively, being peripheral to implies that something is on the outskirts, or periphery, of a particular thing or system. It suggests that something is not centrally important or a core component of that system. Finally, being tangential to refers to something that is only slightly related or relevant to a particular thing or system, similar to a tangent in geometry. It denotes that something is not essential or integral to it, but has some level of connection or relevance.