It's difficult to come up with antonyms for a plant species like Saint Ignatia Bean, as it's specific and has no direct opposite. However, we can consider words that contrast with the characteristics of this plant. Saint Ignatia Bean is known for its medicinal properties and has been used to treat various ailments for centuries. So, antonyms for it could be words like harmful, toxic, ineffective, or useless. This plant is also associated with healing, protection and peace, and antonyms could be words like cursed, destructive, dangerous, or chaotic. Despite the absence of exact opposite words, looking at its attributes can provide clues for antonyms.