Opposite words for promulgate:
secrete, retract, keep secret, bury, hide, withhold, silence, revoke, recall, keep back, recant, conceal, suppress, cover, hush.
Usage samples:
  1. Under these circumstances, it was to be expected that the Whist Club of New York would promulgate a code of Auction laws which would be accepted from the Atlantic to the Pacific.
    "Auction of To-day", Milton C. Work.
  2. And as soon as he made this discovery he hastened to promulgate it.
    "Cruel As The Grave", Mrs. Emma D. E. N. Southworth.
  3. Being absolute in authority, all they needed to do was to promulgate the decrees and order their execution.
    "On the Firing Line in Education", Adoniram Judson Ladd.
  4. If you could hinder them to promulgate any copy of that frightful picture by Lawrence, or indeed any picture at all, I had rather stand as a shadow than as a falsity in the minds of my American friends: but this too we are prepared to encounter.
    "The Correspondence of Thomas Carlyle and Ralph Waldo Emerson, 1834-1872, Vol II.", Thomas Carlyle and Ralph Waldo Emerson.