EN

Synonyms for intelligent

Most common

smart rational bright astute clever brilliant

Definitions

  1. adj. 1

    Of high or especially quick cognitive capacity, bright.

  2. adj. 2

    Well thought-out, well considered.

    The engineer had a very intelligent design proposal for the new car.

From weakest to strongest

  1. unintelligent
  2. obtuse
  3. dumb
  4. stupid
  5. intelligent
  6. rational
  7. sensible
  8. enlightened
  9. astute
  10. shrewd
  11. brainy

From the opposite of intelligent, on the left, to its strongest synonyms, on the right.

Choose the right word

Intelligent or Knowing?

A knowing child has more knowledge than would be looked for at his years, perhaps more than is quite desirable, while to speak of a child as intelligent is altogether complimentary.

J. C. Fernald, English Synonyms and Antonyms (1914)

Example sentences

  • wise It was wise of you to take your umbrella with you.
  • rational Starting from now, I am going to be more rational.
  • sensible A sensible person wouldn't speak to you like that.
  • astute Tom was an astute businessman who made a lot of money.
  • brilliant Even if it's not true, it's a brilliant invention.
  • clever The dog was so clever that he seemed almost human.

Popularity over time

Word1850 → 2019Trend
intelligentsteady
wisesteady
rationalrising
sensiblesteady
astuterising
brilliantsteady

Use in printed books, per decade from 1850 to 2019.

By length

3 letters
apt1
4 letters
wise1, keen1
5 letters
ready2, sound1, quick1, smart1, sharp1, savvy2
6 letters
bright1, clever2, gifted2, astute2, shrewd1, nimble2, brainy2
7 letters
healthy2, sapient
8 letters
rational3, sensible3, sentient
9 letters
brilliant2, conscious2, ingenious3, sagacious
10 letters
reasonable4, prehensile
11 letters
enlightened3
12 letters
intellectual5
13 letters
understanding4, knowledgeable4

The small number after each word is its number of syllables (ready2 = 2 syllables).

In other languages

Français
intelligent
Italiano
intelligente
Español
inteligente
Deutsch
intelligent
Català
intel·ligent