Synonyms for Impossibility:

• n.

  •
  • with the best will in the world,
  • no-go,
  • something will not work/start/open etc.,
  • unbelievable,
  • impossible,
  • hardly,
  • possibly,
  • be out of the question.
  •absurdity (noun)
  • foolishness,
  • bizarreness,
  • implausibility,
  • contradiction,
  • irrationality,
  • anachronism,
  • idiocy,
  • inconsistency,
  • craziness,
  • farce,
  • inanity,
  • absurdity,
  • baloney,
  • balderdash,
  • preposterousness,
  • eccentricity,
  • meaninglessness,
  • folly,
  • outlandishness,
  • incongruity,
  • Self-contradiction,
  • ludicrousness,
  • paradox,
  • nonsense,
  • invalidity,
  • silliness.
  •hopelessness (noun)
  • futility,
  • impracticability,
  • difficulty,
  • unfeasibility,
  • failure,
  • unattainability,
  • unreasonableness,
  • unlikelihood,
  • contrariety.
  •impossibility (noun)
  • impossibleness,
  • inconceivability,
  • impossible action.
  •impracticality (noun)
  • unworkabilities,
  • in applicabilities,
  • in-applicabilities,
  • in applicability,
  • un-workability,
  • in-applicability,
  • un workabilities,
  • inapplicabilities,
  • un workability,
  • un-workabilities.
  •improbability (noun)
  • implausibilities.
  •state (noun)
  • impossibility.

• Other synonyms:

  •
  • will-o'-the-wisp.
  •
  • out.
  •Other relevant words:
  • incapacity,
  • dubiousness,
  • incompatibility,
  • contradiction in terms,
  • Dead lift,
  • doubtfulness,
  • hardness,
  • rarity,
  • Rasper,
  • Prodigiousness,
  • infeasibility,
  • nonexistence,
  • choice,
  • vote,
  • sour grapes,
  • teaser,
  • oxymoron,
  • selection,
  • discrepancy,
  • uselessness,
  • alternative,
  • hopelessness,
  • election,
  • inability,
  • hard work,
  • preference,
  • irony,
  • uphill work,
  • incredibility,
  • option,
  • disagreement,
  • doubt,
  • tough job,
  • disability,
  • incapability,
  • Impossibilities.

Paraphrases for Impossibility:

• Equivalence

  • Noun, singular or mass
    impossible.

• Forward Entailment

  • Noun, singular or mass
    possibility.

• Independent

  • Noun, singular or mass
    unavailability, weakness, denial, shortcoming, refusal, ability.

• Other Related

  • Proper noun, singular
    inability.
  • Noun, singular or mass
    failure, incapacity, lack, powerlessness, absence, inability, impotence, helplessness.

Antonyms for Impossibility:

• n.

  • hopelessness
    practicality, probability, possibility, feasibility.
  • Other antonyms:
    possibleness.

Hypernym for Impossibility:

• n.

  • state
    inconceivableness, unattainableness, inconceivability.

Hyponym for Impossibility:

• n.

  • state
    nonexistence, nonentity.