Meaning : Without care or concern.
Example :
Carelessly raised the children's hopes without thinking of their possible disappointment.
Synonyms : heedlessly
Meaning : Without caution or prudence.
Example :
One unfortunately sees historic features carelessly lost when estates fall into unsympathetic hands.
Synonyms : incautiously
As if with kid gloves. With caution or prudence or tact.
She ventured cautiously downstairs.