a.

1. 猜疑的，疑心的；多疑的[（+of）]
   I'm suspicious of the government's intentions.

   我懷疑政府的意圖。

2. 可疑的，有蹊蹺的
   There were suspicious circumstances about his death.

   關於他的死，有一些值得懷疑的情況。

adj.