Guesswork

Making assumptions about a person's ability based on their age is just guesswork.

Assuming that a person is guilty without proper evidence is guesswork.

Assuming that a product will sell well without conducting market research is guesswork.

Guessing the answer to a trivia question without knowing the topic is just guesswork.

I can't trust his guesswork estimates of the project's budget.

The contractor's guesswork measurements led to incorrect installation of the equipment.

His guesswork driving caused him to miss the exit.

I don't trust her guesswork opinions on politics.

Her guesswork assumptions about the market trends were proven wrong.

His guesswork solutions to complex problems were rarely accurate.

The weatherman's guesswork forecast was completely off.

The politician's guesswork promises during the campaign were not fulfilled.

She guessed the size of the room by guesswork.

The calorie count of the dish was guesswork because the recipe didn't specify exact measurements.

The politician's claim was criticized for being guesswork.