on one's own (adjective) alone: separate; apart
Sinonime: 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
Antonime: appropriate,
basic,
essential,
integral,
necessary,
needed,
pertinent,
relevant