simple; simplified
Describes something made less complex or easier to use, often in contrast to a full or standard version. Common in compounds like 簡易版 (simplified edition) or 簡易裁判所 (summary court).
This manual is written in simple language.
The simplified version of the software is free to use.
Emphasizes lack of difficulty or straightforwardness. Often used for procedures, methods, or things that are uncomplicated. Slightly less common than sense 1 in modern usage; 簡単 is more frequent for 'easy'.
This dish can be made easily.
The procedure was plain and finished quickly.
They simplified this system.
We solved it using a simple method.
prefab; prefabricated house