i-adjective
Describes a color that is somewhat blue or green; often used for things like bruises, leaves, or the sky.
彼の顔は青っぽいあざで覆われていた。
His face was covered with a bluish bruise.
この葉っぱはまだ青っぽいね。
This leaf is still greenish, isn't it?
i-adjective
immature; inexperienced; green; naive
Figurative use likening a person to unripe fruit; implies lack of experience or worldly wisdom.
彼の考え方はまだ青っぽいところがある。
His way of thinking still has a naive side.
新入社員はみんな最初は青っぽいものだ。
All new employees are green at first.