Final answer:
Aphasia is the term used to describe the inability to speak in an orderly and logical way. It is a language disorder that affects communication.
Step-by-step explanation:
The term used to describe the inability to speak in an orderly and logical way is aphasia. Aphasia is a language disorder that affects a person's ability to communicate effectively. It can result in difficulty finding words, forming sentences, and understanding language. It can be caused by damage to the brain, such as a stroke, or other neurological conditions.