挙動不審

Meanings

1. Noun, Na-adjective

   suspicious behavior; acting suspiciously

• 挙動不審きょどうふしんの男おとこを見みつけた。

  I found a suspicious man.

• 君きみが挙動不審きょどうふしんでいるから、観察かんさつしていたのさ。

  You were acting suspicious, so they had you under surveillance.