Impossible Synonyms

53 impossible synonyms include not possible, out of the question, not worth considering, unfeasible, impractical, impracticable, and unthinkable. Impossible is an adjective, and its antonyms are possible, easy, and attainable. Here are some additional synonyms for "impossible" with example sentences.

Another word for Impossible

53 other ways to say impossible.

1. not possible

  • wild
  •   
  • vain  
  •  
  • unworkable  
  •  
  • unthinkable  
  •  
  • unobtainable  
  •  
  • unimaginable  
  •  
  • unfeasible  
  •  
  • undoable  
  •  
  • unbelievable
  •   
  • unattainable  
  •  
  • unachievable  
  •  
  • risible  
  •  
  • ridiculous
  •   
  • preposterous  
  •  
  • paradoxical  
  •  
  • outrageous  
  •  
  • out of the question  
  •  
  • outlandish  
  •  
  • not worth considering  
  •  
  • not possible  
  •  
  • non-viable  
  •  
  • ludicrous  
  •  
  • like herding cats  
  •  
  • laughable  
  •  
  • irrational
  •   
  • incredible
  •   
  • inconceivable  
  •  
  • impractical  
  •  
  • impracticable  
  •  
  • implausible  
  •  
  • illogical  
  •  
  • hopeless
  •   
  • hare-brained  
  •  
  • forlorn  
  •  
  • far-fetched  
  •  
  • beyond one  
  •  
  • absurd
  •   

2. unmanageable

  • wayward  
  •  
  • unmanageable  
  •  
  • ungovernable  
  •  
  • unendurable  
  •  
  • unbearable  
  •  
  • recalcitrant  
  •  
  • perverse  
  •  
  • objectionable  
  •  
  • maddening  
  •  
  • intractable  
  •  
  • intolerable  
  •  
  • infuriating  
  •  
  • exasperating  
  •  
  • difficult
  •   
  • demanding
  •   
  • awkward
  •   

Use impossible in a Sentence

His dreams felt impossible to realize.

It seems impossible to achieve success.

She considered the task impossible to complete.

They deemed the situation impossible to fix.

What seems impossible today may be accomplishable tomorrow.