Impossible
Impossible adjective - Incapable of being solved or accomplished.
Not allowed and impossible are semantically related In some cases you can use "Not allowed" instead an adjective "Impossible".
Nearby Words: impossibility, impossibly
Not allowed
Impossible and not allowed are semantically related in gone topic. Sometimes you can use "Impossible" instead an adjective phrase "Not allowed".
Mutual synonyms
Both terms in one sentence
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While you're allowed to kill the guards (who would otherwise make the level impossible to do), you're not allowed to kill any civilians.
Source: Video Game / PAYDAY 2 -
Parodied in Monty Python's The Meaning of Life, where the Catholic family has an absurd if not impossible number of kids, because they're not allowed to use birth control.
Source: Massive Numbered Siblings - Not Allowed to Grow Up: Morningstar's secondary motivation for opposing the Serdists is that she wants to escape slavery through death, where is impossible to resurrect one, but only if they died through old age.
Source: Fan Fic / Sonic Evil Reborn Zero
Cite this Source
Not allowed and Impossible. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/impossible/not_allowed
Impossible & Not allowed. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/impossible/not_allowed>.
Not allowed or Impossible. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/impossible/not_allowed.
Google Ngram Viewer shows how "impossible" and "not allowed" have occurred on timeline