plausibility

The detective questioned the plausibility of the suspect's elaborate alibi.

(Chinese) 侦探质疑嫌疑人那精心编造的不在场证明的可信度。

Given the lack of physical evidence, the plausibility of his theory is quite low.

(Chinese) 由于缺乏实物证据，他的理论的合理性相当低。