easy to do; it’s not hard to ~
A formal expression meaning 'easy to do' or 'not hard to imagine', often used with verbs of imagining or understanding.
This pattern is a set phrase meaning 'it is not difficult to do' or 'easy to do'. It is most commonly used with verbs like 想像する (to imagine), 理解する (to understand), or 察する (to guess), often in the form 想像に難くない. It can also attach directly to a verb's dictionary form, as in 想像するに難くない. The nuance is that something is so obvious that it requires no effort to grasp or predict. It is a formal, written-style expression typical of essays, news articles, or formal speeches. In casual conversation, you would rarely use it; instead, you might say 簡単に想像できる or 分からないでもない.