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Antilicious means bad. It is the opposite of the suffix "licious," which means awesome. The word licious can be added to almost any word including rainbow, therefore creating the word rainbowlicious. But the prefix "anti" means opposite, so the word basically means not licious.
I didn't like the taco. It was so antilicious.
by Muffins McRainbowlicious January 22, 2013