AnalyzerSentence analysis3SpansSentence難解な理論1000 character limitAnalyzeSentence難なん解かいな理り論ろんSpan Details難なん解かいdifficult to understand; abstruse; unintelligiblena-adjective, nounなadnominal form of the copula (after a na-adjective or noun)grammar理り論ろんtheorynounReport an issue with this page