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"inconsiderate" is also used as a crossword clue. If that's what you saw, the answer is often thoughtless (11 letters).
Definitions
lacking regard for the rights or feelings of others
Word origin
From in- + considerate.
Used in a sentence
“Not replacing the roll after using the last of the toilet paper is very inconsiderate.”
“Bayliss and his father were talking together before dinner when Claude came in and was so inconsiderate as to put up a window, though he knew his brother hated a draft.”
““Ann Landers claims drop-in visits are inconsiderate,” he said.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Thoughtless”13 letters
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