Irrational
"Irrational" in Japanese
ばかげた
bakageta
(unfounded or nonsensical)
不合理な
fugōri na
(unfounded or nonsensical)
無理な
muri na
(unfounded or nonsensical)
無理数
murisū
(mathematics: of a number)
理不尽な
rifujin na
(unfounded or nonsensical)
筋違いな
sujichigai na
(unfounded or nonsensical)
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.