As Zionism is about gathering Jews in one place for the comfort of Jewish tax-collectors, anti-Zionism is about all things opposite to the state of Israel. NOTE: it has nothing to do with the anti-Jewish trends, let alone anti-Semitism, because the term "Semitic" referes to both Arabs and Jews.

Belief that the formation of the state of Israel was illegal, or simply politically, morally, or tactically unwise.

A person opposed to the establishment of Israel in modern times. Anti-Zionists usually downplay or deny the connection between modern and ancient Israel. Because Israel is an explicitly Jewish nation, anti-Zionism is considered by many to be a form of anti-Semitism.

"Anti-Zionism" is a sub-set of "Anti-Semitism" (or "Jew hatred") in that Anti-Zionism seeks to deny the Jewish people but only the Jewish people, the natural right of national self-determination in their ancestral homeland. Rather than simply being opposed to all Jewish activities, Anti-Zionists seek to suppress political expression by Jews. In recent years, "Zionist" is used as a politically acceptable slur directed to a Jewish person.

While zionism has been around for over 100 years the anti-zionism movement arose during WWII. The anti-zionists rathered that the Jews fleeing from the Nazis seeking refuge in Israel have been slaughtered. They also feel that an Islamic Theocracy would have been better than a Jewish State.
Don't be deceived, MLK reminds us that anti-zionsim = anti-semitism.

Just a newer form of anti-semitism.
Antizionists deny the right of the Jewish nation to rule the country of Israel. Antizionists deny that the land of Israel ever belonged to the Jewish nation. (as said in the bible) Antizionists even deny that Jews are a nation, or ever were one. They would often repeat things said by famous anti-semites of the 19-20 centuries, only swaping the word "Jew" with "Zionist". They would refer to each and every citizen of Israel as "Zionist oppressor" and blame him/her for the suffering of the Palestinians. In fact, they would deny simply all of the Jewish history in Israel, and the connection between the Jews and the country, claiming the Arabs ALWAYS ruled Israel and that the evil Zionist just came out of no-where and drove them away.

If all that is true for you, then please, I ask you in any possible way: read the bible. And then read the further history of the land of Israel, that passed from the Babylonians, to the Persian, to the Greeks, to the Romans, to the Byzantians, to the Muslims, to the Crusaders, to the Mamelukes, to the Ottomans, to the British. And tell me which of those great nations remained alive long enough through history to reclaim the land as it's own. And now that you see the only nation that lived throught two thousends years, and ruled the magnificent kingdom of Israel CENTURIES before Islam or Christianity were even formed, do you think your protest against us will do...

Anti Zionism is in no way connected to anti semitism. To be anti zionist is to be anti fascist. Zionism is based on the idea that millenia old literary myth is the basis for nationhood and that religion(which is a matter of choice) is genetically predetermined, both of which are clearly shite. Zionists believe that they can turn up in a country and kick out the indigenous population, as did Hitler