underweight

US /ˌʌn.dɚˈweɪt/
UK /ˌʌn.dɚˈweɪt/
"underweight" picture
1.

kurang berat badan, terlalu kurus

below a weight considered normal or healthy

:
The doctor said the baby was slightly underweight.
Doktor berkata bayi itu sedikit kurang berat badan.
She was concerned about her dog being underweight.
Dia bimbang anjingnya kurang berat badan.