The word 'amorphic' refers to something that has no definite shape or form. Its antonyms, on the other hand, describe objects that have a definite structure and shape. Words like 'defined,' 'delineated,' 'shaped,' 'structured,' and 'symmetrical' all convey a sense of organization and order. These antonyms are often used to describe precise and deliberate forms that have been carefully crafted or molded into a particular shape. They are also commonly used in the fields of art, architecture, and engineering, where precision and accuracy are essential. In contrast to the indistinct and undefined nature of 'amorphic,' its antonyms connote a sense of certainty and stability.