clumsiness · noun U /ˈklʌm.zi.nəs/
clumsiness
C2 the quality of being clumsy
Dictionary example:
The accident was caused by her clumsiness.
Learner example:
Then I wanted to skip with her and the girls but my clumsiness made me [b]lush and I left the rope and returned to my boys' games. (Certificate of Proficiency in English; C2; French)