English adverb: thoughtlessly | |||
| 1. | thoughtlessly in a thoughtless manner | ||
| Samples | He stared thoughtlessly at the picture. | ||
| Synonyms | unthinking, unthinkingly | ||
| Antonyms | thoughtfully | ||
| 2. | thoughtlessly showing thoughtlessness | ||
| Samples | He treated his parents thoughtlessly. | ||
| Antonyms | thoughtfully | ||