noun, noun or participle which takes 'suru', transitive verb
prediction; prejudgment; foregone conclusion
Often used in negative contexts such as 予断を許さない (unpredictable, too close to call) or 予断を排する (set aside preconceptions). The noun and する-verb cover both making a prediction and forming a premature judgment.
選挙の結果はまだ予断を許さない。
The election result is still too close to call.
先入観
You must not prejudge based on preconceptions.