Midfielder Keith Andrews said he and the rest of the squad believed they should have beaten Watford after the Hornets left Portman Road with a 2-1 victory.
Andrews said: "We're obviously devastated not to have won the game and I felt that our performance deserved more than a defeat.
"I thought on the whole we put in a good shift and we didn't get our just rewards, which was the disappointing aspect.
"We're all big and bold enough to realise that seven defeats on the spin isn't good enough and we need to a get a win as soon as possible, which hopefully will be against Barnsley on Saturday."
Defender Ibrahima Sonko was left frustrated by the penalty he conceded, tweeting: "Soft penalty is killing me, so annoyed. Can't believe it.”
Unused sub Reece Wabara was similarly frustrated: "Disappointing result, but can't fault the players’ desire. Very unfortunate to get something out the game. The fans were great as always.”