IPA: /ˈkʌmbərsəm/
KK: /ˈkʌmbərsəm/
Hard to manage or carry because it is heavy or large.
The box was too cumbersome for me to lift by myself.
Cumbersome → It is formed from "cumber" (from Old French *combrer*, meaning to hinder or obstruct) and the suffix "-some" (meaning characterized by). The word "cumbersome" describes something that is characterized by hindrance or difficulty in movement or handling.
Think of something that is 'hindered' ('cumber') and 'characterized by' ('-some') difficulty — that's why cumbersome means difficult to handle.