When I first picked out this card, I thought to myself it must mean: Be ruthless. As the day went on, I think it was really saying: ruthless doesn't really get you anywhere, at least not today.
Let's see what Understanding Tarot says (p. 139)
"She may be a very ambitious person who values her career more than marriage and motherhood and so has remained single."
Hmm... I know that is the traditional meaning but I'm not sure it fits specifically. Interesting.