How to say "Impossible" in Japanese

When translating "impossible" into Japanese, you must choose carefully between 無理 and 炊臼之夢. In Japanese, 無理 (むり (muri)) is typically associated with "impossible, unreasonable, difficult" (Syllabus Level: N4) and represents Often used to describe something that is too difficult, impossible, or an excessive demand. Can also mean "overdoing it". On the other hand, 炊臼之夢 (すいきゅうのゆめ (suikyuunoyume)) maps to "An impossible, absurd dream" (Syllabus Level: C2) and represents Essential structural term in CEFR C2 vocabulary syllabus.. A literal translation of "impossible" can often sound unnatural to native Japanese speakers if mixed up!