clueless
英['kluːləs]
美['kluːləs]
- clued n.线索；提示
- on prep.在...之上；由...支撑着；在（某一天）；关于；基于adv.穿着；向前（移动)；表示持续性adj.表示已连接、处于工作状态或使用中；发生；值班
Adjective:
-
totally uninformed about what is going on; not having even a clue from which to infer what is occurring
- He's absolutely clueless.
他毫无本事。
