Meaning : In a thoughtless manner.
Example :
He stared thoughtlessly at the picture.
Synonyms : thoughtlessly, unthinkingly
Meaning : Not exhibiting or characterized by careful thought.
Synonyms : unreflective, unthoughtful
Meaning : Without care or thought for others.
Example :
The thoughtless saying of a great princess on being informed that the people had no bread; `Let them eat cake'.
Synonyms : thoughtless, uncaring
Unthinking meaning in Bengali (Bangla).