言語道断
ごんごどうだん
na-adjective, noun, expression
outrageous; unspeakable; beyond words
formalcommunication
1.
outrageous; unspeakable
An expression of strong condemnation, indicating that something is so bad or unacceptable that it is beyond description with words.
FOUR-CHARACTER IDIOM (四字熟語):
言語 (language, words) + 道断 (cutting off the path)
Etymology
Originally a Buddhist term meaning a truth so profound that it cannot be expressed in words. The modern meaning has shifted to describe something so bad it defies description.
Common patterns
Used as a na-adjective with だ/な or as a noun:
Register
Formal. Often used in serious contexts like news reports, official statements, or when expressing strong moral condemnation.