nonreversible

The chemical reaction is nonreversible, so once the two liquids are mixed, the change cannot be undone.

用法提示：句中 nonreversible 为形容词，作表语，表示反应不可逆转。

This coat is nonreversible, so the woolly lining is always on the inside.

用法提示：此处 nonreversible 为形容词，作表语，说明衣物不能翻过来两面穿。

After you confirm the payment, the transfer is nonreversible, so double-check the account number.

用法提示：句中 nonreversible 为形容词，作表语，强调转账一旦完成无法撤销。