more than is usually asked for

excessive, extravagant

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

excessive; repetitious

kept for use when needed; additional to what is being or will be used; a spare part (for a machine or engine); (to agree) to avoid hurting, punishing, destroying, (a person, building etc)

extra, reserve

more than is needed or wanted

extra, unnecessary

not necessary; that could have been avoided

not required