Other than words like 'insightful', 'observant', and 'perceptive', is there another word?

closed as off-topic by sumelic, user140086, ermanen, user66974, Mitch Nov 20 '15 at 0:32

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  • How about 'alert'? 'Responsive'? – JEL Nov 15 '15 at 9:47
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    Please tell us a little bit more about how you want to use this word. Can you give an example of how you would use it in a sentence? Do you want an adjective, like the words you listed? Why aren't you satisfied with those three words? What other words did you find when you looked in a thesaurus to see synonyms of these words? – sumelic Nov 15 '15 at 9:48
  • Colloquially, idiomatically - quick on the uptake! Or does that refer to someone who learns quickly? – WS2 Nov 15 '15 at 9:53
  • "discerning" or "acute" would be my choices, depending on context. Quite a few scientific publications use "rapid discernment" as synonymous with "quick detection". – Misneac Nov 15 '15 at 22:37


: having a strong ability to notice things M-W


: keenly perceptive or alert; "quick-sighted into the faults of the time"- Leonard Bacon : also, quick-sighted, sharp-eyed WordNet


Someone who notices things quickly could be called perspicacious.

Definition: having a ready insight into and understanding of things: it offers quite a few facts to the perspicacious reporter.

Derivatives: perspicaciously adverb Origin early 17th cent.: from Latin perspicax, perspicac- ‘seeing clearly’ + -acious .

synonyms: discerning, shrewd, perceptive, astute, penetrating, observant, percipient, sharp-witted, sharp, smart, alert, clear-sighted, farsighted, acute, clever, canny, intelligent, insightful, wise, sage, sensitive, intuitive, understanding, aware, discriminating.

antonyms: stupid

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    This post would be improved by explaining why you suggest this term, for example, by providing a dictionary definition or examples in the wild. I encourage you take the site tour and review the help center for additional guidance. – Nathaniel Nov 15 '15 at 14:05
  • This is the answer, IMO. – Drew Nov 15 '15 at 17:15
  • @Drew why not upvote this one if that is the case? – Morpheus Nov 15 '15 at 18:35
  • @Morpheus: I already had. Why do you ask? – Drew Nov 15 '15 at 22:00
  • @Drew Sorry, I guess I didn't realize there was such a long lag before others could see it. – Morpheus Nov 16 '15 at 17:48

Consider keen-eyed or keen-sighted. Another word is eagle-eyed:

very good at seeing or noticing things


If a short idiom is OK, try "a keen eye for something":

an ability to notice and recognize something

(Macmillan English Dictionary)

Example: My dad has a keen eye for talent.


If you mean literally see things quickly, then Elian's quite right about sharp-eyed.

If you mean perceive things quickly, particularly abstract concepts, quick itself is frequently used as an adjective:



  1. fast in learning or understanding M-W


she's very quick

he has a quick mind


On the ball


  1. Alert, competent, or efficient; active and aware of things:


A teacher who is really on the ball.

FBI agents were very much on the ball in the Bremer snatch.


Depending on the usage - "intuition" or "intuitiveness"

Example: His intuition was uncanny...

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    This doesn't answer the question, even if it's correct. Please define the difference -- because both your words are nouns, they both fit in the sentence. What is the usage needed for each word? – Andrew Leach Nov 15 '15 at 19:47

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