abated, abolished, abrogated, annulled, avoided, canceled(or cancelled), disannulled, dissolved, negated, nulled, nullified, quashed, repealed, rescinded, rolled back, struck down, vacated, voided

countermanded, overrode, overruled, overturned, vetoedaborted, called, called off, dropped, recalled, retracted, reversed, revoked, suspended, withdrewbanned, enjoined, forbade(also forbad), outlawed, prohibiteddisallowed, dismissed, rejectedannihilated, broke down, eliminated, eradicated, erased, liquidated, removed, threw out, wrote off

did away with, set aside

enacted, laid down, legislatedestablished, founded, institutedformalized, legalized, legitimated, legitimized, validatedpassed, ratifiedallowed, approved, authorized, cleared, endorsed(also indorsed), permitted, sanctioned, warrantedcommanded, decreed, mandated, ordered, prescribed