The antonyms for the word "fine tunings" are roughness, coarseness, crudeness, and clumsiness. These words are used to describe things that are not refined or polished. Roughness refers to the irregularity of a surface or texture. Coarseness, on the other hand, suggests something that is lacking in delicacy or beauty. Crudeness implies a lack of taste, refinement or sophistication. Clumsiness is used to describe awkwardness, lack of grace, and imprecision. These antonyms are useful in describing things that are less than perfect, unfinished or clumsy. They help to provide a contrast to the idea of fine-tuned, precise, or perfected.