Amphiarthrodial joints display ___ movement than synarthrodial joints.

The answer to this question would be more movement.

The amphiarthrodial joint is a joint that you will found in the rib cage. This joint doesn't have a synovial cavity and only allow a little movement.

But synarthrodial joints movement is practically zero. The example for synarthrodial joint would be suture in your skull. Skull joint in adult can't move so its volume can't be changed.