While some patients can be adequately cared for at home, others are best served by care in a hospital.

adequately 是形容词 adequate 的副词形式，由词根 adequ（足够）和后缀 -ate（形容词后缀）组成，再加上 -ly 变成副词。意思是"足够地、充分地"，表示达到所需的标准或要求。