Not give one’s full attention.
More example sentences
- Midori watched the room warily, only listening with half an ear as she scanned the crowd.
- ‘Oh, my, this is interesting,’ said Maria, who had been listening with half an ear until now.
- As they walked off to start their shift, Janey was listening with half an ear to Debi's chatter.
Definition of listen with half an ear in:
- The British & World English dictionary