| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | minor, outside |
| Synonyms: | beside the point, borderline, exterior, external, incidental, inessential, irrelevant, minor, outer, outermost, perimetric, secondary, superficial, surface, tangential, unimportant |
| Antonyms: | central, crucial, internal, major |
| Main Entry: | exterior |
| Part of Speech: | adjective |
| Definition: | outside |
| Synonyms: | exoteric, external, extraneous, extraterrestrial, extraterritorial, extrinsic, foreign, marginal, outdoor, outer, outermost, outlying, outmost, outward, over, peripheral, superficial, surface |
| Antonyms: | central, interior, middle |
| Main Entry: | external |
| Part of Speech: | adjective |
| Definition: | outside, extrinsic |
| Synonyms: | alien, apparent, exterior, extraneous, foreign, independent, out, outer, outermost, outmost, outward, over, peripheral, superficial, surface, visible |
| Antonyms: | inside, internal, intrinsic |
| Main Entry: | extraneous |
| Part of Speech: | adjective |
| Definition: | unneeded; irrevelant |
| Synonyms: | accidental, additional, adventitious, beside the point, extra, foreign, immaterial, impertinent, inadmissible, inapplicable, inapposite, inappropriate, incidental, inessential, needless, nonessential, off the subject, peripheral, pointless, redundant, superfluous, supplementary, unconnected, unessential, unnecessary, unrelated |
| Antonyms: | appropriate, basic, essential, integral, necessary, needed, pertinent, relevant |
| Main Entry: | frivolous |
| Part of Speech: | adjective |
| Definition: | trivial, silly |
| Synonyms: | barmy, childish, dizzy*, empty-headed, facetious, featherbrained, flighty, flip, flippant, foolish, gay, giddy*, harebrained, idiotic, idle, ill-considered, impractical, juvenile, light, light-minded, minor, niggling, nonserious, not serious, paltry, peripheral, petty, playful, pointless, puerile, scatterbrained, senseless, shallow, sportive, superficial, tongue-in-cheek, unimportant, unprofound, volatile, whimsical |
| Antonyms: | grave, mature, sensible, serious, solemn, thoughtful, wise |
| Main Entry: | marginal |
| Part of Speech: | adjective |
| Definition: | borderline; slight |
| Synonyms: | bordering, insignificant, low, minimal, minor, negligible, on the edge, peripheral, rimming, small, verging |
| Antonyms: | central, core, interior, internal |
| Main Entry: | nonessential |
| Part of Speech: | adjective |
| Definition: | not needed or important |
| Synonyms: | deadwood, dispensable, excess baggage, excessive, expendable, extraneous, inessential, insignificant, peripheral, petty, superfluous, trivial, unimportant, unnecessary |
| Antonyms: | essential, important, necessary, needed |
| Main Entry: | outer |
| Part of Speech: | adjective |
| Definition: | external, exposed |
| Synonyms: | alien, beyond, exoteric, exterior, extraneous, extrinsic, outermost, outlying, outmost, outside, outward, over, peripheral, remote, superficial, surface, without |
| Antonyms: | central, inner, interior |
| Main Entry: | outermost |
| Part of Speech: | adjective |
| Definition: | outer |
| Synonyms: | beyond, distant, fringe, furthermost, outlying, outmost, outward, peripheral, remote |