alerted

Having been made alert; having been made attentive, alarmed or warned of something coming soon.

日本語の意味

警戒させられた / 注意を喚起された / 警告を受けた

The alerted guards immediately sealed the perimeter when the alarm sounded.

警報が鳴ると、警戒している警備員たちはすぐに周囲を封鎖した。

意味（1）

Having been made alert; having been made attentive, alarmed or warned of something coming soon.

more alerted

（ comparative ）

most alerted

（ superlative ）