careless adj.
VERBS be | become, get, grow She had begun to grow careless. | make sb Boredom made him careless.
ADV. extremely, very | a bit, a little, rather a rather careless mistake | notoriously
PREP. about She's careless about her spelling. | of When performing his stunts he was notoriously careless of his own safety. | with He's very careless with money.
You can also check other dicts: careless (English, 中文解释 ), wordnet sense, Collins Definition