👉 Unintelligibility is a concept in linguistics and philosophy that refers to the difficulty of understanding or speaking a language. It can be defined as a lack of comprehensiveness, lack of clarity, or lack of coherence between words, phrases, sentences, or even entire languages. In other words, it's when what we speak doesn't make sense, doesn't flow smoothly, and doesn't convey the intended meaning. The term is often used to describe situations where people might have trouble understanding or