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. Sir Arthur Eddington:

   It is impossible to trap modern physics into predicting anything with perfect determinism because it deals with probabilities from the outset.

2. Helle Jacobsen:

   There is this understanding in Denmark that it has already achieved gender equality, but when it comes to sexual violence, it is almost impossible to get a conviction for rape, there is a very low number of [ women reporting rape ], so it means access to justice in Denmark if you are a rape a survivor is almost non existent.

3. H. A. Kramers:

   In the world of human thought generally, and in physical science particularly, the most important and fruitful concepts are those to which it is impossible to attach a well-defined meaning.

4. William Faulkner:

   All of us failed to match our dreams of perfection. So I rate us on the basis of our splendid failure to do the impossible.

5. Warren Claybar:

   They told me that would be impossible since they lost everything in the flood.