步履蹒跚

步履蹣跚
bùlǚpánshān
(idiom) to walk unsteadily; to hobble along

CEDICT

walking unsteadily; staggering; limping; hobbling

Wiktionary

形容走路腿脚不方便，歪歪倒倒的样子

維基詞典

Entry Composition

1 步履 bùlǚ
  1. gait
  2. to walk
2 蹒跚 pánshān to walk unsteadily; to stagger; to lurch; to hobble; to totter