いこう 以降 Common word JLPT N2 Wanikani level 34 LinksSentence search for 以降Sentence search for いこうSentence search for 已降Kanji details for 以 and 降Edit in JMdict Noun, Adverb (fukushi)1. on and after; from ... onward; sinceOther forms已降 【いこう】Notes已降: Rarely-used kanji form. Discussions Log in to talk about this word.