"It's tough when you don't get that fairytale ending you were hoping for," O'Driscoll said on ITV.
In the final minutes, Ireland hammered away at the All Blacks line, but New Zealand held out.
You can always looked back at missed opportunities, but they gave everything they had and they were repelled," O'Driscoll said.
"The really frustrating thing, and talking about Johnny Sexton looking back we have to say it, there was a missed penalty after 58 minutes that gets it to within drop goal range.
You never blame kickers but knowing him, it will be one that will really hurt him."
Persons:
Brian O'Driscoll, Johnny Sexton, O'Driscoll, Sexton, Johnny, Trevor Stynes, Ed Osmond
Organizations:
Ireland, Rugby, New Zealand, Wales, ITV, Blacks, Thomson
Locations:
New, Ireland