triggered
Triggered (adj) means Set off or activated by a specific condition. Example: “The security light is triggered whenever someone walks up the path.”
How to use triggered
Learner’s notesIn plain EnglishSet off by something — either a mechanism activating, or, informally, a person getting upset.
The "got angry" sense is informal and often used sarcastically online.
Fill the gap
Can you complete this real example?
The security light is _____ whenever someone walks up the path.