The Lardennois method, also known as the Lardennois technique, has no true antonyms since it is a specific approach to medical treatment developed by French physician Paul Lardennois. However, one could use opposing words to describe alternative methods of treatment. For instance, instead of the intensive and invasive Lardennois method, one may choose a gentle and holistic approach to healing. Some synonyms for gentle include mild, soft and delicate, while antonyms could include forceful, aggressive, or invasive. Therefore, it could be understood that the "opposite" of the Lardennois method would be any form of treatment that differs in terms of intensity, invasiveness, and approach, such as holistic, natural and less interventional treatments.