The quality or state of being elaborate; the degree to which something is detailed, complex, and carefully worked out.
From 'elaborate' + '-ness' suffix forming abstract nouns. This creates a noun from the adjective to describe the characteristic of being elaborately detailed.
The elaborateness of a Gothic cathedral—with its flying buttresses, intricate carvings, and stained glass—represents hundreds of years of accumulated design choices, making it one of the most elaborate structures humans have ever built.
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