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.