DUP leader Arlene Foster has warned she will not allow Gerry Adams to "rewrite the past".
Ms Foster was speaking following the Sinn Féin president's speech to his party's Ard Fheis.
The first minister said Mr Adams' call for any new government in the Republic to increase their efforts in bringing about Irish unity was unwise and a step backwards.
It would be wholly unacceptable for any government to give rise to such a campaign, she said.
Ms Foster said comments made about 1916 and the 1981 hunger strikes were "insulting to those of us who were victims of the PIRA".
Mr Adams told the Ard Fheis he was "proud of the men and women of 1916" and equally proud of the men and women of the H Blocks and Armagh "and of the patriot dead from our time".
"In an attempt to shore up the base Sinn Féin ditched any concern for innocent victims. Is Sinn Féin proud of the cowards who planted the Enniskillen bomb, the La Mon bomb or who masterminded the disappeared?" Ms Foster said.
"Gerry Adams is very clever at selectively quoting the past but he can rest assured that I will not allow him or anyone else in Sinn Féin to rewrite the past."
