unusualness

The unusualness of the bright green bird attracted a large crowd of curious birdwatchers to the park.

(Chinese) 这只鲜绿色小鸟的奇特性吸引了大批好奇的观鸟者来到公园。

Detectives were alerted by the unusualness of the crime scene, noting that nothing of value had been stolen.

(Chinese) 侦探们被犯罪现场的异常情况惊动了，他们注意到没有任何值钱的东西被偷走。