楽らっ観かん論ろん者しゃらっかんろんしゃMeanings1nounoptimistA person who tends to see the bright side of things or expects favorable outcomes. Often used in contrast with 悲観論者 (pessimist).彼かれはどんな状じょう況きょうでも楽らっ観かん論ろん者しゃだ。He is an optimist in any situation.楽らっ観かん論ろん者しゃは将しょう来らいの経けい済
