adj.口齿不清的，语无伦次的，不清楚的，难以分辨的，难懂的，无逻辑的，不连贯的

The professor's lecture was incoherent, leaving students baffled.
教授的演讲内容混乱，让学生们感到困惑。
His thoughts were jumbled, making it difficult for him to express himself coherently.
他的思绪杂乱无章，难以清晰地表达自己的想法。
The article seemed to lack any cohesive structure, jumping from topic to topic randomly.
这篇文章没有连贯的结构，随意地从一个主题跳到另一个主题。
She was rambling on incoherently about her vacation plans, and no one could follow her.
她絮絮叨叨地说着她的度假计划，没有人能听懂她在说什么。
After a night of sleep deprivation, his speech became incoherent and slurred.
睡眠不足后，他的言语变得含糊不清。
The instructions for the project were so convoluted that it was hard to make sense of them.
项目说明过于复杂，让人很难理解。
The drunkard's laughter was a cacophony of incoherent giggles.
醉汉的笑声是一阵混乱的傻笑。
Her ideas were so fragmented that it was challenging to piece together a coherent narrative.
她的想法支离破碎，难以形成连贯的故事。
The patient's delirium made their conversation incoherent, as they mixed up past events with present reality.
病人的神志不清使他们的对话变得混乱，分不清现实与过去的界限。
The heated debate degenerated into a series of incoherent accusations, with no clear resolution in sight.
热烈的辩论逐渐演变成一连串混乱的指责，看不到任何解决的迹象。