Dynamo Kiev took the lead from the penalty spot, but Arsenal defender William Gallas managed to score the equaliser just two minutes from full time.
“My feelings are a mixture of disappointment and relief,” Wenger told Sky Sports 3.
“We were a goal down with three minutes to go and we didn’t lose.
“We had chances and didn’t take them and then we just didn’t create enough in the second half.
“Then, at any moment, you cannot afford to make a mistake and we did.
“At 1-0 down at least we found the resources to fight back to 1-1 because the players gave it everything.”
He added: “That’s the biggest domination we’ve had here for a long, long time so we are frustrated because we wanted the three points. But maybe it will be a good point,” noted Wenger.
“We lacked a bit of a killer instinct when we were on top and maybe that’s what we can get out of this game.”
