guesswork

1. N-UNCOUNT Guesswork is the process of trying to guess or estimate something without knowing all the facts or information. 猜測(cè); 臆測(cè)

The question of who planted the bomb remains a matter of guesswork. 誰(shuí)策劃了爆炸的問(wèn)題仍屬于臆測(cè)。