- 妙不可言 miàobùkěyán too wonderful for wordsindescribably beautiful or ingenious; so wonderful that it is impossible to express in speech, sometimes used ironically to mean marvelous
- 不可言喻 bùkěyányù inexpressible(idiom) impossible to describe or put into words; beyond description
- 只可意会，不可言传 zhǐkěyìhuìbùkěyánchuán can be understood but not describedcan only be felt or understood through intuition and experience, but cannot be expressed with words; mysterious and subtle; used to describe profound truths or feelings (from Zhuangzi)
- 可以意会，不可言传 kěyǐyìhuìbùkěyánchuán can be sensed but not explainedcan be understood intuitively but is impossible to describe in words; mysterious and subtle
