The word "inelaborate" refers to something that is simple, plain or not extensively worked on. Its antonyms, on the other hand, are terms that describe the opposite of these qualities. The first antonym that comes to mind is "elaborate," which refers to something that is complex, detailed, or carefully worked on. Other antonyms for inelaborate include "ornate," "lavish," "extravagant," "fancy," "intricate," "sophisticated," and "embellished." These words all suggest the idea of something that has been given a lot of attention, decoration, or detail. They are important to know when trying to describe something that is not simple or plain.