がいたん 慨嘆 LinksSentence search for 慨嘆Sentence search for がいたんSentence search for 慨歎Kanji details for 慨 and 嘆Edit in JMdict Noun, Suru verb, Transitive verb, Intransitive verb1. deploring; lamentation; regret; complaintOther forms慨歎 【がいたん】Notes慨歎: Rarely-used kanji form. Discussions Log in to talk about this word.