Alert
Alert adjective - Having or showing quickness of mind.
Usage example: an alert and well-trained sheep dog who can handle difficult situations
Intelligent is a synonym for alert in characteristic topic. In some cases you can use "Intelligent" instead an adjective "Alert", when it comes to topics like ability, attentive, character trait, mindful.
Intelligent
Intelligent adjective - Having or showing quickness of mind.
Usage example: his intelligent response to the emergency averted a disaster
Alert is a synonym for intelligent in clever topic. You can use "Alert" instead an adjective "Intelligent", if it concerns topics such as ability, character trait, mindful, sharp-witted.
Mutual synonyms
Both words in one sentence
- Then again, this might be justified as Skaarj are far more intelligent and alert than Titans in terms of programming and backstory both.
Source: Useless Useful Stealth -
Informed Ability: Rise of Endymion is full of references to the independent nature, critical thinking tendencies and, at one point, a vast mob of "intelligent, questioning, alert" Aenea's followers.
Source: Literature / Hyperion Cantos -
Nintendo Hard: The map is often large and enemies are numerous, they are also mostly intelligent, alert, and knows to pry into hiding spots when investigating or searching.
Cite this Source
Intelligent and Alert. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/alert/intelligent
Alert & Intelligent. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/alert/intelligent>.
Intelligent or Alert. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/alert/intelligent.
Google Ngram Viewer shows how "alert" and "intelligent" have occurred on timeline