When do you personally consider someone to be antisemitic?

People sometimes say we call everyone an antisemite, so what's your consideration?

Personally I see Antizionism as antisemitism and people would mask antisemitism by saying they just hate Zionists cuz "We support a genocide bleh bleh bleh" to make it more acceptable.

Obviously when someone says "Jews bad" it's antisemitic clearly but what's something people say that you think is considered antisemitic?