neither here nor there
• of no importance or relevance.
Similar:
inconsequential,
insignificant,
unimportant,
of little/no importance,
of little/no consequence,
of little/no account,
of no moment,
incidental,
inessential,
non-essential,
immaterial,
irrelevant,
negligible,
inappreciable,
inconsiderable,
slight,
minor,
trivial,
trifling,
petty,
paltry,
nugatory,
not worth mentioning,
not worth bothering about,
not worth speaking of,
insubstantial,
silly,
lightweight,
piddling,
fiddling,
piffling,
small-bore,
picayune,
