"Crawley played the conditions much better than us and adapted to it much better and we didn't learn from it. I didn't think we adapted tonight," Jackett told the club's official website.
"We did get the crucial first goal as well which so often is the big one in a game. But both goals against us were poor from our point of view defensively.
"It was very hard for us to get our game going and it bypassed us I thought. It wasn't necessarily our worst performance of the season, but was a very disappointing result."
Wolves are top of League One, one point ahead of Brentford.