be based on guesswork

Examples (10)

• Their price estimates are based on pure guesswork.
• The decision was based on guesswork rather than solid data.
• His predictions were based on guesswork, not scientific evidence.
• The budget calculations are based on guesswork and assumptions.
• Many of the initial findings were based on educated guesswork.
• The timeline is based on guesswork since we lack accurate information.
• Their conclusions shouldn't be based on guesswork alone.
• The report was criticized for being based on guesswork instead of research.
• Investment strategies that are based on guesswork are risky.
• The entire plan appears to be based on guesswork and speculation.