Jackie McNamara's men then cruised to their first win of the new Scottish Premiership campaign after a 4-0 rout, and Wright said: "To be honest, I did see it coming before the game. We were very flat in the dressing-room.
"I said to them that I didn't want them to come in at half-time and me having to give them a rattle. And those were pretty much true words as that's what happened.
"There was a severe lack of energy and zip about us today and that goes for our work off the ball as well. That was very disappointing.
"As the manager, I will look at what we did this week along with the staff to see if maybe we contributed to that a little bit.
"There was a huge slice of good fortune about the first goal which took a deflection as Steve Banks had it covered easily.
"We made it hard for ourselves but it wasn't a 3-0 game at half-time. We'll learn from it though and move on to the next game."
United manager McNamara said: "It was a good win for us. We scored the goals at a good time and we took confidence from that.
"I'm delighted for David Goodwillie to get his first goal. I thought his all-round play was much better. He looked a threat.
"We were up and at them today. We didn't want to get into a fight with them and play for second balls. We wanted to get the ball down and play which is what we did well."