Alert
Alert adjective - Paying close attention usually for the purpose of anticipating approaching danger or opportunity.
Usage example: she needed to stay alert throughout the train ride so as not to miss her stop
Hypervigilant and alert are semantically related. In some cases you can use "Hypervigilant" instead an adjective "Alert".
Hypervigilant
Alert and hypervigilant are semantically related. You can use "Alert" instead an adjective "Hypervigilant".
Cite this Source
Hypervigilant and Alert. (2016). Retrieved 2026, July 31, from https://thesaurus.plus/related/alert/hypervigilant
Alert & Hypervigilant. N.p., 2016. Web. 31 Jul. 2026. <https://thesaurus.plus/related/alert/hypervigilant>.
Hypervigilant or Alert. 2016. Accessed July 31, 2026. https://thesaurus.plus/related/alert/hypervigilant.
Google Ngram Viewer shows how "alert" and "hypervigilant" have occurred on timeline