"carelessly" in the adverb sense
1. carelessly, heedlessly
without care or concern
"carelessly raised the children's hopes without thinking of their possible disappointment"
2. incautiously, carelessly
without caution or prudence
"one unfortunately sees historic features carelessly lost when estates fall into unsympathetic hands"
3. rakishly, raffishly, carelessly
in a rakish manner
"she wore her hat rakishly at an angle"
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License