guesswork

She relied on guesswork to solve the puzzle.

The success of the project was based on pure guesswork.

Without proper data, it's all just guesswork.

His conclusions were drawn from sheer guesswork.

The plan was made with a lot of guesswork involved.

We can't rely on guesswork when making important decisions.

Their predictions were based on pure guesswork.

Guesswork is not a reliable method for problem-solving.

The results were achieved through a combination of hard work and guesswork.

Don't make decisions based on guesswork alone.