cumbersome
adjective /ˈkʌmbəsəm/
  /ˈkʌmbərsəm/
- large and heavy; difficult to carry synonym bulky- cumbersome machinery
 
- slow and complicated- cumbersome legal procedures
 
- (of words or phrases) long or complicated- The organization changed its cumbersome title to something easier to remember.
 
Word Originlate Middle English (in the sense ‘difficult to get through’): from cumber ‘obstruct’ + -some.