Saying the word kufr

Does a person become a kaafir If saying kufr without having intention of kufr. For example If a Muslim happen to verbally say or finds himself verbally saying the word ‘kufr’, with no intention of kufr whilst or after searching/reading a question and answer or information about kufr or due to too much thinking of kufr scenarios or worrying and in deep thinking about kufr etc ?