Coniform is a word that describes something that has a cone shape. There are many synonyms for coniform that can be used to describe something that has a similar shape. Some of these synonyms include cone-shaped, conical, tapered, pointed, pyramidal, and spire-like. These words can be used to describe a wide variety of objects, from geometric shapes to plant forms, and even architectural structures like church spires or towers. Whether you're describing a natural feature of the landscape or a man-made object, there are plenty of words to choose from that can help you convey the unique coniform shape of your subject.