以免 yǐmiǎn
以免（yǐmiǎn）means “in order to avoid / so as to prevent (formal, written)”. 以免 is the written/formal counterpart of 免得. Formation: 分句1 + 以免 + 不良后果（多用于书面）
in order to avoid / so as to prevent (formal, written)
HSK5Formation
分句1 + 以免 + 不良后果（多用于书面）
Explanation
以免 is the written/formal counterpart of 免得. It introduces an unwanted consequence to be prevented and appears often in notices, instructions and rules. Structure: 'do A, 以免 B', where B is the bad result to avoid.
Examples
Note
Same meaning as 免得 but more formal; prefer 以免 in writing, 免得/省得 in speech.
FAQ
以免 — what does it mean and how is it used?
in order to avoid / so as to prevent (formal, written). 以免 is the written/formal counterpart of 免得. It introduces an unwanted consequence to be prevented and appears often in notices, instructions and rules. Structure: 'do A, 以免 B', where B is the bad result to avoid.
以免 — how do you form it?
分句1 + 以免 + 不良后果（多用于书面）
以免 — any usage notes?
Same meaning as 免得 but more formal; prefer 以免 in writing, 免得/省得 in speech.