coherent
adjective uk/kəʊˈhɪə.rənt/ us/koʊˈhɪr.ənt/
C2 （论据、观点、计划）有条理的，连贯的，前后一致的
If an argument, set of ideas, or a plan is coherent, it is clear and carefully considered, and each part of it connects or follows in a natural or reasonable way.
C2 （讲话）条理清晰的，清楚明白的
If someone is coherent, you can understand what that person says.
When she calmed down, she was more coherent (= able to speak clearly and be understood). 她冷静下来后，讲话有条理多了。