らくご 落伍 LinksSentence search for 落伍Sentence search for らくごSentence search for 落後Kanji details for 落 and 伍Edit in JMdict Noun, Suru verb1. straggling; falling behind; being left behind; dropping outNoun, Suru verb2. falling behind the ranks; falling out of lineOther forms落後 【らくご】 Discussions Log in to talk about this word.