She really was going to try to stumble home by herself.

Yes, I stumbled into the other guy quite by accident.

They stumbled onto the road by accident and thought the area was great.

But he had stumbled upon the project by chance, then turned it to his purposes.

It seemed almost to have stumbled onto things by accident.

He stumbled toward the man standing by the open trunk.

If you stumbled into them by sheer chance, you'd still be in trouble.

But all of a sudden I stumbled on the very thing, just by luck.

It led the old man for a few steps, then paused as he stumbled forward by himself.

It's not going to stumble out of it by mistake.