1. To play or move to and fro; to move one way and the other.

2. To fluctuate; to be unsettled in opinion; to vacillate; to be undetermined; as, to waver in opinion; to waver in faith.

Let us hold fast the profession of our faith without wavering. Hebrews 10:23.

3. To totter; to reel; to be in danger of falling.