1. without care or concern
- carelessly raised the children's hopes without thinking of their possible disappointment
Similar word(s): heedlessly
2. without caution or prudence
- one unfortunately sees historic features carelessly lost when estates fall into unsympathetic hands
Similar word(s): incautiously
3. in a rakish manner
Sentences with carelessly as an adverb:
- The papers were carelessly strewn on the table.
- Distracted by the salesperson, he carelessly read the contract.