Is this your crossword clue?
"negligent" is also used as a crossword clue. If that's what you saw, the answer is often careless (8 letters).
Definitions
Careless or failing to take proper care.
Word origin
From Middle English necligent, negligent, from Old French negligent, from Latin negligēns.
Used in a sentence
“grossly negligent”
“negligent behavior”
“act in a negligent manner towards his pupils”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Careless”9 letters
Not quite right?
"Search similar patterns."
N________