自じ動どう的てきじどうてきCommon wordJLPTN3Freq.FrequencyTop 10,000Meanings1na-adjectiveautomatic; automaticallyDescribes something that happens or is done without conscious thought, human intervention, or deliberate decision. Often used as an adverb with に.ドアが自じ動どう的てきに開ひらいた。The door opened automatically.彼かれは自じ動どう的てきにうなずいた。He nodded automatically.