The British naturally became suspicious by the spring of 1779.

Lovers of Chinese food crave secrecy and are suspicious by nature.

I'm a guy who's suspicious by nature of things that fall into place too easily.

Her people were suspicious by nature, but Folan was usually not.

"I was suspicious by the way they were praying very loud," the agent said.

Two children died last night in a fire dubbed suspicious by officials here, a police spokeswoman said.

JR was suspicious by nature, and even more so when figures came together as easily as this.

Or is the fact that he left so suddenly suspicious by itself?

Suspicious by nature, he repeatedly advised his associates that they should never reveal secret information to anybody.