AnalyzerSentence analysis2SpansSentenceくすぶる不安1000 character limitAnalyzeSentenceくすぶる不ふ安あんSpan Detailsくすぶるsmolder; smoke without flame; be sooty; be smoke-stained; simmer; smolder (of conflict); stay obscure; languish; seclude oneself-> 燻るgodan verb不ふ安あんanxiety; uneasiness; worry; insecuritynoun, na-adjective