adj.未写下的，未记录的，未录音的

The conversation was unrecorded, leaving no evidence for future reference.
这段对话没有被记录下来，没有为将来参考留下任何证据。
Many indigenous languages have become extinct before they were unrecorded.
许多土著语言在未被记录之前就已经灭绝了。
The unrecorded music session was a magical moment that only those present got to experience.
那场未被录制的音乐环节是一个只有在场人士才能体验到的神奇时刻。
He kept an unrecorded account of his travels in a personal diary.
他在个人日记中记录了自己旅行的未经公开的细节。
The unrecorded traditions and customs of the tribe were passed down orally from generation to generation.
这个部落未被记载的传统和习俗是通过口口相传的方式代代相传的。
The scientist discovered an unrecorded species of plant during her expedition in the Amazon rainforest.
这位科学家在亚马逊雨林探险时发现了一种未被记录的植物物种。
The unrecorded interview with the famous author revealed some surprising insights into his writing process.
与那位著名作家未被记录的访谈揭示了他写作过程的一些惊人见解。
Due to technical issues, the first few minutes of the lecture were unrecorded.
由于技术问题，讲座的前几分钟没有被录下来。
The artist's early works remain largely unrecorded, making them even more intriguing to art historians.
这位艺术家的早期作品大多没有被记录，这让艺术史学家对它们更加感兴趣。
The unrecorded folk songs of the region carry stories and histories that might otherwise be lost forever.
该地区的未被记录的民歌承载着可能永远丢失的故事和历史。