clear and understandable
lucid - clear
The word ‘lucid’ is used to describe something that is clearly expressed through speech or writing and is therefore easy to understand. It can also be used to express a person’s ability to think logically or clearly. In both contexts, it tends to be used more commonly in a professional setting.
The witness to the crime gave the police a clear and lucid account of what happened that night.
Forthrightness and lucidity of thought are two of Sandra’s best attributes. That’s why she’s such an effective team member.
His medication is making him sleepy and confused, but there are still times when he’s quite lucid.