Synonyms for impossible
ɪmˈpɒs ə bəlim·pos·si·ble

WiktionaryRate these synonyms:4.0 / 1 vote

1. impossiblenoun

   Antonyms:
   possible

2. impossiblenoun

   not possible, not able to be done.

   Antonyms:
   possible

3. impossibleadjective

   of a person, very difficult to deal with.

   You never listen to a word I say - you're impossible!

   Antonyms:
   possible

Princeton's WordNetRate these synonyms:1.7 / 3 votes

1. impossibleadjective

   something that cannot be done

   "his assignment verged on the impossible"

   Antonyms:
   viable, manageable, attainable, doable, affirmable, tolerable, feasible, accomplishable, executable, thinkable, achievable, workable, mathematical, realizable, possible, contingent, assertable, practicable, come-at-able

2. impossibleadjective

   not capable of occurring or being accomplished or dealt with

   "an impossible dream"; "an impossible situation"

   Synonyms:
   unimaginable, insufferable, inconceivable, unacceptable, out of the question, unsufferable

   Antonyms:
   achievable, workable, viable, attainable, executable, manageable, contingent, feasible, thinkable, accomplishable, realizable, practicable, possible, assertable, doable, affirmable, come-at-able, tolerable, mathematical

3. impossible, inconceivable, out of the question, unimaginableadjective

   totally unlikely

   Synonyms:
   unimaginable, insufferable, inconceivable, unacceptable, out of the question, unsufferable

   Antonyms:
   achievable, come-at-able, possible, workable, manageable, feasible, affirmable, thinkable, accomplishable, tolerable, mathematical, practicable, assertable, realizable, attainable, executable, contingent, viable, doable

4. impossible, insufferable, unacceptable, unsufferableadjective

   used of persons or their behavior

   "impossible behavior"; "insufferable insolence"

   Synonyms:
   unaccepted, insufferable, out of the question, unsufferable, unacceptable, unimaginable, inconceivable

   Antonyms:
   attainable, practicable, contingent, realizable, workable, accomplishable, executable, affirmable, possible, achievable, assertable, doable, viable, come-at-able, tolerable, manageable, mathematical, feasible, thinkable

Editors ContributionRate these synonyms:0.0 / 0 votes

1. can't do

   not able to do

   the boy can't do the assighnment because it was impossible.

   Submitted by rinat on August 14, 2019  

2. hard to achieve

   Submitted by anonymous on May 19, 2021  

Dictionary of English SynonymesRate these synonyms:4.3 / 3 votes

1. impossibleadjective

   Synonyms:
   impracticable, unfeasible, unattainable, unachievable, not feasible, not possible, out of the question

Synonyms, Antonyms & Associated WordsRate these synonyms:0.0 / 0 votes

1. impossibleadjective

   Synonyms:
   impracticable, unfeasible, unattainable

PPDB, the paraphrase databaseRate these paraphrases:5.0 / 1 vote

1. List of paraphrases for "impossible":

   unable, lmpossible, possible, impractical, impracticable, unattainable, unfeasible, unworkable, unthinkable

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How to use impossible in a sentence?

1. Lewis Carroll:

   One can't believe impossible things. I dare say you haven't had much practice, said the Queen. When I was your age, I always did it for half-an-hour a day. Why, sometimes I've believed as many as six impossible things before breakfast.

2. Antonio Garbelini Junior:

   It’s impossible to know how far reaching the restrictions would be, but some kind of divestment or other kind of structural remedy will be solicited.

3. Ruth Wallace:

   In some ways, I would hate to even go back to a company that thinks so little of me, but my circumstances are kind of unique and limited, i can't just pack up and move across the country and find a great job. It's going to be impossible for me to recreate this flexible income I was able to find. My path forward is to keep fighting.

4. Sydney Smith:

   Correspondences are like small clothes before the invention of suspenders; it is impossible to keep them up.

5. Arthur C. Clarke:

   If an elderly but distinguished scientist says that something is possible, he is almost certainly right but if he says that it is impossible, he is very probably wrong.