additional; beyond what is usual, expected or arranged

accessory; excess

not belonging (to what is being dealt with); coming from outside

unneeded; irrelevant

of no importance to a person, thing

irrelevant

of small size, value, importance etc

petty

unnecessary

unnecessary, groundless

of, on, forming, a periphery; having only a little importance

minor, outside

small; unimportant; on a small scale

trivial, insignificant

no longer needed (especially a person being made unemployed); no longer or not used or useful

excessive; repetitious

more than is needed or wanted

extra, unnecessary

not justified, desirable or necessary

unnecessary

not necessary; that could have been avoided

not required