楽らっ観かん論ろんMeaningsNoun1. optimismKanji used楽comfort観observe論argumentPitch accentらっかんろんComposed of楽らっ観かんoptimism; taking an optimistic viewNoun論ろんargument; discussion; dispute; controversy; discourse; debate; theory (e.g. of evolution); doctrine; essay; treatise; …NounExamples1経けい済ざいが好こう転てんするだろうという楽らっ観かん論ろんがかなりある。There is considerable optimism that the economy will improve.