careless
adjectiveUK /ˈkeələs/
US /ˈkerləs/
Not paying attention and making mistakes.
He was careless and dropped the glass.
RELATED WORDS
OTHER MEANINGS
2. Done without thinking about the results.
It was a careless mistake to leave the door open.
3. Not taking enough care to be safe.
Careless drivers cause accidents.
4. Relaxed and not worried about anything.
She spent a careless afternoon in the sun.