Alert
Alert adjective - Having or showing quickness of mind.
Usage example: an alert and well-trained sheep dog who can handle difficult situations
Quick is a synonym for alert in ability topic. In some cases you can use "Quick" instead an adjective "Alert", when it comes to topics like quick-witted, characteristic, behaviour, mental condition. popular alternative
Quick
Quick adjective - Having or showing the ability to respond without delay or hesitation.
Usage example: she's a quick wit, always ready with a pun or joke when the moment calls for one
Alert is a synonym for quick in ability topic. You can use "Alert" instead an adjective "Quick", if it concerns topics such as characteristic, behaviour, mental condition, agility. popular alternative
Mutual synonyms
Both words in one sentence
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Not everyone's dreams, though, just people unfortunate enough to be watching TV when an advertisement bomb gets deployed on the audience and not quick or alert enough to shield themselves.
Source: Advert-Overloaded Future - These are extremely alert and aware snakes that are highly curious and quick to react.
Source: It Can Think - One popular tactic to gauge how high an intelligence agency's alert level is is to take a quick glance at their parking lot and see how many cars are parked there.
Source: Boring But Practical / Real Life
Cite this Source
Quick and Alert. (2016). Retrieved 2026, July 20, from https://thesaurus.plus/related/alert/quick
Alert & Quick. N.p., 2016. Web. 20 Jul. 2026. <https://thesaurus.plus/related/alert/quick>.
Quick or Alert. 2016. Accessed July 20, 2026. https://thesaurus.plus/related/alert/quick.
Google Ngram Viewer shows how "alert" and "quick" have occurred on timeline