na-adjective
purposive; appropriate to the purpose
A formal, philosophical term meaning 'serving a purpose' or 'fitting the aim'. Used in academic or technical contexts, especially in discussions of teleology or design. Not common in everyday speech.
この装置の設計は合目的的で、無駄がない。
The design of this device is purposive and free of waste.
哲学で
In philosophy, natural phenomena are sometimes interpreted purposively.