unprintable area不可印区域
unprintable detail不宜刊印的
unprintable character不可打印字符
unprintable comments不堪入耳的话
Use Unprintable Characters使用不可打印字符
ADJ（形容词） If you describe something that someone has said or done as unprintable, you mean that it is so vulgar or shocking that you do not want to say exactly what it was. 不宜印成文字的
Her reply was unprintable.
她的回答不宜被印刷出来。