noun a trip in walking or running.
2. stumble ·vt to cause to stumble or trip.
3. stumble ·vi to walk in an unsteady or clumsy manner.
4. stumble ·noun a blunder; a failure; a fall from rectitude.
5. stumble ·vi to fall into a crime or an error; to err.
6. stumble ·vt fig.: to mislead; to confound; to perplex; to cause to err or to fall.
7. stumble ·vi to strike or happen (upon a person or thing) without design; to fall or light by chance;
with on, upon, or against.
8. stumble ·vi to trip in walking or in moving in any way with the legs; to strike the foot so as to fall, or to endanger a fall; to stagger because of a false step.