precarious

The bridge looked precarious and made everyone nervous.

橋は不安定に見え、皆を不安にさせた。

His financial situation was precarious, making it hard to plan for the future.

彼の経済状況は当てにならず、将来の計画を立てるのが難しかった。

The evidence was precarious, leaving the jury uncertain.

証拠は不確かで、陪審員を不安にさせた。