underweight
US /ˌʌn.dɚˈweɪt/
UK /ˌʌn.dɚˈweɪt/

1.
kurus, berat badan kurang
below a weight considered normal or healthy
:
•
The doctor said the baby was slightly underweight.
Dokter mengatakan bayi itu sedikit kurus.
•
She was concerned about her dog being underweight.
Dia khawatir anjingnya kurus.