Agnathic is a term that refers to the absence of a jaw. Synonyms for agnathic include edentulous, jawless, toothless, and mandibular aplasia. Edentulous is a term often used in dentistry to describe the condition of being without teeth, while toothless and jawless more specifically refer to the absence of teeth or jawbone. Mandibular aplasia, on the other hand, is a medical term that describes a condition in which an individual is born with an undeveloped or absent jawbone. While agnathic is a specific term, having knowledge of its synonyms can help individuals better communicate about the condition or related issues.