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Definition of smart adjective from the Oxford Advanced American Dictionary

      

    smart

     adjective
    adjective
    NAmE//smɑrt//
     
    (smarter, smartest)
     
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    intelligent
  1. 1intelligent; able to learn and think quickly She's smarter than her brother. He's not smart enough to be a politician. opposite stupid Thesaurusintelligent
    • smart
    • brilliant
    • bright
    • sharp
    These words all describe people who are good at learning, understanding, and thinking about things, and the actions that show this ability.
    • intelligent good at learning, understanding, and thinking in a logical way about things; showing this ability:He's a highly intelligent man. She asked a lot of intelligent questions.
    • smart quick at learning and understanding things; showing the ability to make good business or personal decisions:She's smarter than her brother. That was a smart career move.
    • brilliant extremely intelligent or skillful:She's a brilliant young scientist.
    • bright intelligent; quick to learn:He's probably the brightest student in the class. Bright is used especially to talk about young people. Common collocations of bright include girl, boy, kid, and student.
    • sharp bright:You're a pretty sharp kid.
    Patterns
    • a(n) intelligent/smart/brilliant/bright/sharp child/kid/boy/girl
    • a(n) intelligent/smart/brilliant man/woman
    • a(n) intelligent/smart/brilliant thing to do
  2. 2showing good judgment That was a smart career move. OK, I admit it was not the smartest thing I ever did (= it was a stupid thing to do). opposite stupid
  3. rude
  4. 3being rude by saying things or making jokes in a way that shows a lack of respect Don't get smart with me, kid.
  5. computer-controlled
  6. 4(of a device, especially of a weapon/bomb) controlled by a computer, so that it appears to act in an intelligent way smart bombs This smart washing machine will dispense an optimal amount of water for the load.
  7. clean/neat
  8. 5(old-fashioned) (of people) looking clean and neat; well dressed in fashionable and/or formal clothes You look very smart in that suit.
  9. 6(old-fashioned) (of clothes, etc.) clean, neat, and looking new and attractive They were wearing their smartest clothes.
  10. fashionable
  11. 7(old-fashioned) connected with fashionable rich people smart restaurants She mixes with the smart set.
  12. quick
  13. 8(of a movement, etc.) quick and usually done with force synonym brisk He was struck with a smart crack on the head. We set off at a smart pace.
 
adverb (old-fashioned) smartly dressed He ran off pretty smartly (= quickly and suddenly).
 
noun [uncountable]
see smartsSee smart in the Oxford Advanced Learner's Dictionary