What's the adjective for categoryless? Here's the word you're looking for.
Included below are past participle and present participle forms for the
verbs categorize and categorise which may be used as adjectives within certain contexts.
“While attempting to organize the collection, she realized that some of the items were categoryless and defied being placed under any distinct classification.”
“The new collection of art pieces, with its eclectic mix of styles and themes, was quite categorizable, making it easier for art enthusiasts to navigate.”
“As the length of this description suggests, this Kovner-Whaley duet was the most unusual, least categorizable piece of the evening.”
“Again, I feel, Crafts's narrator is not convincingly categorizable as African American in this comparison.”