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alert - definition and synonyms

 
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adjective alert pronunciation in British English /əˈlɜː(r)t/
  1. 1
    able to think in a clear and intelligent way
    She’s remained physically fit and mentally alert.
    Synonyms and related words
  2. 2
    paying attention to what is happening and ready to react quickly if necessary
    alert to: Parents must be alert to the symptoms of the disease.

derived word

alertness

noun [uncountable]

JOMO

… a feeling of pleasure you get from spending time doing what you want and not worrying about what other people are doing or saying

BuzzWord Article

Open Dictionary

brain fade

a temporary inability to think clearly or remember information

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