also: プリミチブ · プリミティヴ
na-adjective
Describes something simple, basic, or old-fashioned, often with a nuance of being underdeveloped or unsophisticated. Can refer to technology, design, or concepts.
このソフトのインターフェースはプリミティブだ。
This software's interface is primitive.
彼の考え方はまだプリミティブな段階にある。
His way of thinking is still at a primitive stage.
シンプル means 'simple' in a positive or neutral sense, while プリミティブ often implies a lack of sophistication or an early stage of development.
Loanword from English 'primitive'.