irrelevant
adjective
[ ɪˈrɛlɪv(ə)nt ]
• not connected with or relevant to something.
• "an irrelevant comment"
Similar:
beside the point,
not to the point,
immaterial,
not pertinent,
not germane,
off the subject,
neither here nor there,
unconnected,
unrelated,
peripheral,
tangential,
extraneous,
inapposite,
inapt,
inapplicable,
unimportant,
inconsequential,
insignificant,
of no matter/moment,
of little account,
trivial,
negligible,
minor,
trifling,
petty,
superficial,
impertinent,