Fianna Fáil's Dara Calleary has described the Government's response to Brexit as being "an awful lot of talk and very little action".
He said the Government has repeatedly said that nothing can be done until the shape of Brexit is known but he said Brexit is already happening.
Speaking at the Commemoration of Theobald Wolfe Tone in Bodenstown, the party’s honorary secretary said: "Irish firms have already been put at a major disadvantage because of the collapse in Sterling's value".
He said that "people have already lost their jobs because of Brexit and uncertainty and fear about the future are to be found in literally thousands of businesses".
Mr Calleary said the Government has adopted the approach of being an "observer on the sidelines, hoping for the best and dressing-up empty pronouncements as somehow significant".
He also criticised Sinn Féin for deciding that "Brexit and budget cuts are not important enough to require them to allow an Executive be established".
He said the parties need to understand that failing to reach agreement will continue to leave Northern Ireland voiceless in Brexit negotiations.