SECONDARY

adj. 1 less important, unimportant, inessential or unessential, non-essential, non-critical, subsidiary, ancillary, minor, inferior, subordinate These secondary matters can be dealt with after the important ones 2 derivative, derived, indirect, second-hand, unoriginal, not original; copied, imitated His biography of Queen Victoria was based entirely on secondary sources 3 auxiliary, second-line, backup, extra, reserve, spare, provisional, supporting, supportive, alternate, alternative We were forced to rely on our secondary defences after the enemy cavalry broke through