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"shapeless" is also used as a crossword clue. If that's what you saw, the answer is often amorphous (9 letters).
Definitions
lacking symmetry or attractive form
Word origin
From shape + -less.
Used in a sentence
“If you skip the prelude, which is at once rhythmically square and shapeless, this Lohengrin starts out decently enough, for Hans Helm is one of the okayest Heralds on disc (a modest compliment, to be sure).”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Without clear form”9 letters
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