Impossible
Impossible adjective - Incapable of being solved or accomplished.
Usage example: fitting everything in my backpack seemed an impossible task
Unattainable is a synonym for impossible in possible topic. In some cases you can use "Unattainable" instead an adjective "Impossible", when it comes to topics like unachievable, beyond the bounds of possibility. popular alternative
Nearby Words: impossibility, impossibly
Unattainable
Unattainable adjective - Incapable of being solved or accomplished.
Usage example: unfortunately, world peace is probably an unattainable ideal
Impossible is a synonym for unattainable in possible topic. You can use "Impossible" instead an adjective "Unattainable", if it concerns topics such as unreachable. popular alternative
Mutual synonyms
Related pairs
- implausible and impossible
- implausible and unattainable
- hopeless and impossible
- hopeless and unattainable
- useless and impossible
- useless and unattainable
- futile and impossible
- futile and unattainable
- absurd and impossible
- absurd and unattainable
- preposterous and impossible
- preposterous and unattainable
- inconceivable and impossible
- inconceivable and unattainable
Both words in one sentence
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Impossible too for most new users, as some of the avatars were plot rewards and thus unattainable.
Source: Franchise / Neopets -
While the chart for this goes up to two and a quarter metric tonnes, this requires stats completely unattainable to the player (both at 100, virtually impossible to get them past 75).
Source: Hyperspace Arsenal
Cite this Source
Unattainable and Impossible. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/impossible/unattainable
Impossible & Unattainable. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/impossible/unattainable>.
Unattainable or Impossible. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/impossible/unattainable.
Google Ngram Viewer shows how "impossible" and "unattainable" have occurred on timeline