~ぽい
~ぽい · ~poi · JLPT N2 · noun
~ish
-poi sounds like point-y: it points toward X, so 子供っぽい = kid-ish
Add ~ぽい (often written っぽい) to a noun or verb stem to mean X-like or X-ish: 子供っぽい = childish, 嘘っぽい = sounds like a lie, 忘れっぽい = forgetful. It conjugates like an i-adjective.