And McNamara felt his players deserved all the credit for the manner in which they ground out victory.
McNamara said: "It was interesting to see how quickly they sped up when it went to 1-0, getting the ball back for throw-ins and goal-kicks.
"But that's a compliment to us. It's part and parcel of the game.
"It's up to us to get in behind them, bring them out of position and try to win the match.
"There is a lot of expectation on us but we have handled it well.
"We knew we would have to be patient and that's how it panned out.
"I thought we were excellent and got what we deserved in the end.
"They condensed the middle of the park and tried to take the sting out of the game. But I felt we deserved the three points."
County have collected just one point from their last seven league matches and sit 11th in the Scottish Premiership table.
Meanwhile, Adams refused to make excuses about the nature of his side's latest defeat.
Adams said: "Dundee United are a very good side.
"We tried to compete with them at times but they are in a different league from where we are.
"They spent a lot of money on their side so we're not at the same level as them.
"They have David Goodwillie and Nadir Ciftci coming off the bench and I have two youngsters.
"Our players gave our all but they have very good movement and technical players.
"It was always going to be difficult for us but we kept the scoreline down to one so we've got to be happy with that.
"We had some chances in the first half but didn't take them.
"They leave openings which we tried to exploit but they are a very good side. We just tried our best and staying in the Premiership is our objective."