incautious

1. ADJ If you say that someone is incautious, you are criticizing them because they do or say something without thinking or planning. 粗心大意的; 不經考慮的[正式] [usu ADJ n]

2. incautiouslyADV

Incautiously, Crook had asked where she was. 克魯克漫不經心地詢問了她在哪兒。