IPA: /haɪpərˈvɪdʒələns/
KK: /haɪpərˈvɪdʒələns/
A heightened state of awareness where a person is extremely alert and sensitive to potential dangers or threats.
After the traumatic event, she experienced hypervigilance, constantly scanning her surroundings for any signs of danger.
Hypervigilance → It is formed from "hyper-" (meaning over or excessive) and "vigilare" (meaning to be awake or watchful). The word describes a state of being excessively alert or watchful, often in response to perceived threats.
Think of being 'overly' ('hyper-') 'watchful' ('vigilare') — that's why hypervigilance means being excessively alert.