na-adjective
Describes something that is simplified, not complicated, or can be done quickly. Often used for methods, explanations, or procedures that are intentionally made easy.
この機械は簡易的な操作で動かせる。
This machine can be operated with simple steps.
簡易的な説明で十分です。
A simple explanation will suffice.
簡易 is a noun or prefix meaning 'simplicity' or 'simple', often used in compounds like 簡易食堂 (simple cafeteria). 簡易的 is the adjectival form, used to describe something as simple or simplified.
Formed from 簡易 (kan'i, 'simplicity') + 的 (-teki, '-like, -ish'), creating an adjectival noun meaning 'simple, simplified'.