According to Leo Varadkar, the tanaiste (Irish deputy pm), a border poll on the island would be "unappropriate or wrong" at the moment.
Varadkar called the aspiration for a united Ireland a "legitimate one."
He said, however, that a border poll at the stage would be both divisive and defeated.
According to him, the Northern Ireland Assembly should be "up and running" according to BBC NI's Sunday Politics.
Varadkar stated that post-Brexit trade arrangements, also known as the Northern Ireland Protocol, needed to be addressed and he believes "that it can be done".
He stated that the "tests surrounding when a border check can and should occur" must be clarified.
The Good Friday Agreement contains provisions for a possible poll on Irish reunification. This agreement was the one that brought peace to Northern Ireland after many decades of violence.
It says that the Northern Ireland secretary must conduct a border poll whenever it seems "likely" that a majority in Northern Ireland would vote to create a united Ireland.
