stumbling
adjective
[ ˈstʌmb(ə)lɪŋ ]
• tripping or losing balance while walking; moving with difficulty.
• "they began their stumbling walk home"
stumble
verb
• trip or momentarily lose one's balance; almost fall.
• "her foot caught in the rug and she stumbled"
Similar:
trip,
trip over,
trip up,
lose one's balance,
lose/miss one's footing,
founder,
slip,
pitch,
Origin:
Middle English (as a verb): from Old Norse, from the Germanic base of stammer.