Compared to their second-half showing against England, where they bagged two late tries for a bonus-point, Wales could muster very little after the break in Belfast.
Ireland were utterly dominant with possession and territory, with last year’s player of the championship Aoife Wafer leading the charge.
Travelling fans’ only consolation was a 78th minute Jasmine Joyce try but it was not enough to prevent Wales from leaving empty handed.
“We’re ranked 12th in the world, we played the team ranked 5th in the world and you can clearly see when you’re away from home, you’ve got to be a lot more clinical,” said Wales head coach Sean Lynn.
“We said in the huddle at the end of the game, we’ve got to be better with our composure and accuracy.
“I wouldn’t have said the girls dropped their heads. They stuck at it, stuck to their processes, but Ireland kept the ball really well.
“The girls give everything out there and when you see them upset after the game it’s because they care, they want to be winning, so it is tough.”