What it means
ことのないよう expresses the aim of preventing a particular event or situation from occurring. It follows a verb in the dictionary form: verb + ことのないよう. The こと nominalizes the event, while ないよう presents it as something to be avoided. This pattern is common in formal instructions, notices, plans, and careful written or spoken statements. The full form ことのないように is also used, while the shorter ことのないよう is especially natural before a comma or another clause.
Usage note
ことのないよう is not a general pattern meaning “in such a way that” after any noun or adjective. In this construction, the material before こと must describe an event, normally with a verb in the dictionary form, such as 生じることのないよう. Do not confuse it with other uses of ないよう or with direct noun and adjective attachments.
How to use it
混乱が生じることのないよう、案内板を事前に設置しておきます。
I will install the information board beforehand to prevent confusion.
混乱が生じることのないよう、案内板を事前に設置しておく。
I will install the information board beforehand to prevent confusion.