THESAURUS
peripheral
ambient, apparent, beside the point, circling, circumambient, circumferential, circumflex, circumfluent, circumfluous, circumjacent, cortical, delineatory, embracing, encircling, enclosing, encompassing, enfolding, enveloping, environing, epidermic, exomorphic, exterior, external, extrinsic, fringe, in outline, incidental, inessential, irrelevant, minor, neighboring, open, out, outer, outermost, outlined, outlying, outmost, outside, outstanding, outward, outward-facing, perimetric, public, roundabout, secondary, seeming, suburban, superficial, surface, surrounding, tangential, unessential, unimportant, unnecessary, wrapping