Synonyms of peripheral

2 Syllables

outlying, deadwood, quick-fix, outer, rimming, fringer, minor

3 Syllables

frivolous, light-minded, nonserious, exteriors, outermost, marginal, smattery, tangential, external, extraneous, surface, exterior, off-lying

4 Syllables

irrelevant, incidental, unimportant, inessential, nonessential, perimetric, exoteric, borderline, secondary, superficial, peripherals

6 Syllables

one-dimensional, extraterritorial