Alert
Alert adjective - Having or showing quickness of mind.
Usage example: an alert and well-trained sheep dog who can handle difficult situations
Fast and alert are semantically related in mental condition topic. In some cases you can use "Fast" instead an adjective "Alert".
Fast
Fast adjective - Having or showing quickness of mind.
Usage example: I don't know how to operate this machine, but I'm a fast learner
Alert and fast are semantically related in mental condition topic. Sometimes you can use "Alert" instead an adjective "Fast", if it concerns topics such as agility, agile.
How words are described
| old | old alert | old fast |
| high | high alert | high fast |
| full | full alert | full fast |
| particular | particular alert | particular fast |
| Other adjectives: ambitious, real, massive, little, extra. | ||
Common collocations
| groups | alert groups | fast groups |
Both words in one sentence
- Their melee attacks can kill you in two good hits, depending on the characterthe same as a gunshot, for referenceand they're fast and particularly alert and difficult to hide from.
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Unreadably Fast Text: During his Ninja Turtles review, a fake ad for the "low hitpoints alert" sound sold as a ringtone is shown.
Source: Web Video / Joueur du Grenier -
Note that certain abilities can make a character effectively immune to bullets without, strictly speaking, being examples of this trope — they'd get hurt if a bullet actually hit them, but they're just too fast, agile, and/or alert to let that happen.
Source: Immune to Bullets
Cite this Source
Fast and Alert. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/alert/fast
Alert & Fast. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/alert/fast>.
Fast or Alert. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/alert/fast.
Google Ngram Viewer shows how "alert" and "fast" have occurred on timeline