← Back to browsespontaneouslyadverb#19,326Translations思わずおもわず天然にてんねんにEnglish definitionin a spontaneous mannerExamplesIt occurred to me spontaneously.Tom's compost heap got so hot that it spontaneously combusted.Similar wordsspontaneoussimultaneouslyinstantaneouslysubcutaneouslyspontaneitycontemporaneously← mmhmmtakeda →