Grammar
N3AI-drafted〜っぽい
-ish; tends to; has the feel of
Formation
N + っぽい／V-ます形（ます除く）+ っぽい／い形容詞語幹 + っぽい
Usage
Attaches to nouns, verb stems and some adjective stems to say something strongly has that quality or tendency; the result behaves as an い形容詞. With nouns it often carries a slightly negative or casual nuance (子供っぽい 'childish', 安っぽい 'cheap-looking'). With verb stems it means 'prone to doing' (忘れっぽい, 怒りっぽい). It is colloquial, so avoid it in formal writing.
Examples
このスープは水っぽくて、味がしない。
このスープはみずっぽくて、あじがしない。
This soup is watery and has no taste.
父は年をとって、忘れっぽくなった。
ちちはとしをとって、わすれっぽくなった。
My father has gotten forgetful with age.
三十歳なのに、話し方が子供っぽいね。
さんじゅっさいなのに、はなしかたがこどもっぽいね。
He's thirty, but the way he talks is childish.