Jaws of the Lion monster movement question

Hi. I will probably sound stupid here, but, in JOTL, f you have a monster stat card that says a monster's basic movement is 2 (I'm looking at Vermling Raider basic card), but the monster ability card you turn over says "they are not moving this round," does it really mean they do not move AT ALL? Or does it just mean they do not have any movement in addition to their basic movement? Does the ability card overrule the stat card in this case? Thank you.