suspicious

Etymology

From Old French sospecious, from Latin suspiciosus, suspitiosus.

adj

1. Arousing suspicion.
   His suspicious behaviour brought him to the attention of the police.
   If their views were entrancing their sanitation was primeval; if they possessed stables they were also next to the gas-works; if their gardens were delightful there were odours suspicious of mice in the bedrooms. 1957, H. E. Bates, Death of a Huntsman
2. Distrustful or tending to suspect.
   ;
   I have a suspicious attitude to get-rich-quick schemes.
3. Expressing suspicion
   She gave me a suspicious look.