以降 Traditional form: 以降 Pinyin (reading): yǐjiàng Definitions: since (some point in the past) Characters: 以 - according to; so as to; because of; then 降 - to descend, to fall; to drop, to lower Traditional characters: 以 - according to; so as to; because of; then 降 - to descend, to fall; to drop, to lower