Antonyms for Transposition of Great Vessels (TGV), a congenital heart defect where the two main arteries leaving the heart are switched, include normal heart anatomy, non-TGV conditions like Tetralogy of Fallot, and healthy heart development. While TGV can hinder oxygen flow to the body and require surgery, healthy heart development allows proper blood circulation, oxygenation, and overall well-being. Non-TGV conditions, like Tetralogy of Fallot, involve different malformations in the heart, such as a hole in the heart or narrowing of heart vessels, and often require medical intervention as well. Recognizing the antonyms for TGV, and understanding what constitutes healthy heart anatomy, can help identify and address any heart issues early on.