surmise

1. V-T If you surmise that something is true, you guess it from the available evidence, although you do not know for certain. 猜测[正式]

There's so little to go on, we can only surmise what happened. 几乎没有什么可继续进行的，我们只能猜测发生过的事。

2. N-VAR If you say that a particular conclusion is surmise, you mean that it is a guess based on the available evidence and you do not know for certain that it is true. 猜测[正式]

It is mere surmise that Bosch had Brant's poem in mind when doing this painting. 博斯画这幅画时头脑里想着勃朗特的诗，这只是猜测而已。