clumsy · adjective /ˈklʌm.zi/
clumsy
B2 Clumsy people move in a way that is not controlled or careful enough, and often knock over or damage things.
Dictionary example:
That's the third glass you've broken this week - you're so clumsy!
Learner example:
I was cleaning the house, and as you know, I'm very clumsy, so I was dusting the table, and, accidentally, I dropped the vase. (First Certificate in English; B2; Spanish)