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)

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.