Active
Active adjective - Having much high-spirited energy and movement.
Usage example: the fish are active today, but we still haven't caught anything
Alert is a synonym for active in behaviour topic. In some cases you can use "Alert" instead the word "Active" as an adjective or an adverb, when it comes to topics like mental condition, agility, character trait, energetic.
Alert
Alert adjective - Paying close attention usually for the purpose of anticipating approaching danger or opportunity.
Active is a synonym for alert in behaviour topic. Sometimes you can use "Active" instead the word "Alert" as an adjective or an adverb, if it concerns topics such as mental condition, attentive, property, bustling.
Mutual synonyms
Cite this Source
Alert and Active. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/active/alert
Active & Alert. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/active/alert>.
Alert or Active. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/active/alert.
Google Ngram Viewer shows how "active" and "alert" have occurred on timeline