become thin ( pt became ) , pp become ⇒ 几个月不见,她愈加消瘦了。 Jǐ gè yuè bù jiàn, tā yùjiā xiāoshòu le. → In the several months since I last saw her she's become even thinner.
瘦削
gaunt
瘦子
thin person ⇒ 他年轻时是个瘦子,现在发胖了。 Tā niánqīng shí shì gè shòuzi, xiànzài fā pàng le. → When he was young he was thin, but now he's fat.