impossible

1. 1

   Not possible; not able to be done or happen.not-comparableusually

   • 13 March 1962, John F. Kennedy, speech at the White House Those who make peaceful revolution impossible will make violent revolution inevitable.
   • It is difficult, if not impossible, to memorize 20,000 consecutive numbers.
2. 2

   Very difficult to deal with.colloquialnot-comparableusually

   • You never listen to a word I say – you're impossible!
   • This humidity is impossible.
3. 3

   imaginarydatednot-comparableusually

   • impossible quantities, or imaginary numbers

syn. unfeasible · nonpossible · unhappenable · unpossible

ant. possible · inevitable

1. 1

   An impossibility.

   • In fact, to most people, the real impossibles do not seem impossible, or wonderful, or even difficult at all.
   • “Ye can't expect impossibles, and Jim hadn't no idee o' takin' yer trunk along of him in ther buggy when he kem hyar this mornin'.
2. 2

   A skateboard trick consisting of a backflip performed in midair.