Which term describes speech that is incomprehensible and lacks meaningful connections?

The term that describes speech that is incomprehensible and lacks meaningful connections is incoherence, often referred to as "word salad." This concept applies to a communication pattern where words are jumbled together in a way that does not form coherent thoughts or sentences, making it difficult for the listener to interpret any clear meaning. This phenomenon may occur in various mental health conditions, affecting the clarity and logical structure of speech.

Circumstantiality refers to a mild form of disorganization in thought where the person provides excessive detail but eventually reaches the point, which differs from the chaotic nature of incoherence. Thought processes encompass a broader aspect of how individuals organize their thoughts and may include logical or illogical patterns but does not specifically describe fragmented speech. Blocking refers to an interruption in the flow of thought, where the speaker suddenly stops, which is different from the continuous but disordered speech seen in incoherence or word salad.