Nullified (9)
(Other definitions for cancelled that I've seen before include "Annulled" , "Called off" , "Revoked or terminated" , "No longer scheduled" , "Anulled" .)
(Other definitions for abrogated that I've seen before include "undone" , "Revoked formally" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">nullified</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for negated that I've seen before include "Made ineffective" , "Denied" , "Nullified" , "Contradicted" , "Discredited" .)
(Another definition for neutralised that I've seen is " made ineffective".)