patronizing
🇺🇸
/ˈpeɪtrənaɪzɪŋ/
🇬🇧
/ˈpætrənaɪzɪŋ/
talking to someone in a way that shows you think you are more important or smarter than them
I didn't mean to be condescending; I just wanted to help, but it came out sounding patronizing.