Deny, negate, veto, nullify...
The opposite of affirmative (yes) would be negative (no).
decline deny veto reject are some oposites
disapprove, turn down, reject, veto, disallow
some antonyms for edict are suggestion, recall, opposite, veto, and request.
veto
full of veto
No. The President only has one choice to veto or to pass it. Once he veto's it goes back to congress where they can kill it or they can override his veto with 2-3 majority.
The opposite of the gerund overriding would be approving or endorsing.(In the US Congress, the failure to override a veto is confirming it.)The adjective overriding (meaning of primary importance, overarching) has the opposites secondary, insignificant, negligible, or unimportant.
The plural for the noun veto is vetoes.The plural possessive form is vetoes'.
Veto
The veto and the pocket veto are two ways that the _____ can reject a bill