sketchy・sketchiness

/'sketʃi/　adj)スケッチ風の・大雑把な・不完全な・怪しげな

/'sketʃinəs/　a)曖昧・精度の欠如・疑わしい物

I wouldn't go here after dark. That might just be my own personal preference, but it does feels a little bit like, there might be sketchiness after dark.

preference   /'prefrəns/　n)好み

sketchy attachments  怪しい添付ファイル

a sketchy video

a sketchy modeling agency   怪しいモデル事務所

a little sketchy　少し大雑把

His explanation was too sketchy, so I didn't understand.