What is kufr without intention

Assalamualaikum , I have heard that kufr or disbelief happens through actions, words or beliefs and he will be a kafir if he do the following things and there is no priority whether he wanted to leave Islam or not My question is what is actually meant by unintentional and intentional kufr how it happens can you briefly tell the difference and rulling I done an act of kufr , at that time I had a thought not to do so I don't pay attention to the thought as I thought it was waswas happened to me and I done the act but later found it is kufr , does I will be out of islam Please answer Anybody please answer please read my comment too to see my situation please answer