cumbersome
cumber + -some
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adjective
large or heavy and therefore difficult to carry or use; unwieldy:
〈物が〉大きくて, 重くて運びにくい, 扱いにくい; 〈衣服などが〉重くて着づらい.
e.g. cumbersome diving suits.
slow or complicated and therefore inefficient:
〈方式･過程･組織などが〉複雑で能率の悪い, 面倒な.
e.g. organizations with cumbersome hierarchical structures.
DERIVATIVES
cumbersomely adverb
cumbersomeness noun
ORIGIN
late Middle English (in the sense ‘difficult to get through’): from cumber + -some1.