Thesaurus
Synonyms & Antonyms of careless
1
not paying or showing close attention especially for the purpose of avoiding trouble
- a careless reporter who often doesn't get his facts straight
- a careless mistake that caused the plane to crash
Synonyms for careless
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Antonyms for careless
2
failing to give proper care and attention
- a careless effort that made an unnecessary mess
Synonyms for careless
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Merriam-Webster unabridged
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Time Traveler for careless
The first known use of careless was before the 12th century
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