Spiceaphobic: (n.) A person who is convinced, often without much evidence, that he or she absolutely cannot eat spicy foods and who is afraid to try anything even remotely spicy, as in "I used to be so spiceaphobic that I wouldn't even eat Doritos. But I'm better now."

Antonym: Spiceaholic: One who continuously and joyously seeks to turn his insides into molten lava, as in "He is a total spiceaholic. He likes food so spicy it would make ordinary people cry for hours and the peppers he grows for himself are so hot that I swear they contribute to global warming."