unreasonable or without foundation; not conforming to standard principles; often used in the phrase 荒诞不经 huāng​dàn​bù​jīng meaning "absurd"

not having gone through or experienced something; often used in the proverb 不经一事，不长一智 bù​jīng​yī​shì​bù​zhǎng​yī​zhì