Spiculate is a word that is used to describe something that is pointed or dotted with small projections. Some synonyms for spiculate include spiked, spiky, prickly, jagged, barbed, thorny, bristly, knobbly, bumpy, and uneven. These words convey a similar meaning to spiculate, but each has its own unique connotation. For example, spiked and spiky imply a sharp and straight projection, while prickly and bristly suggest a softer and more scattered array of projections. Similarly, jagged and barbed imply a more irregular and dangerous projection, while knobbly, bumpy, and uneven suggest a more rounded and inconsistent shape. All of these words can be used interchangeably with spiculate to describe a variety of physical and visual attributes.