1.
If you describe an object as ~, you mean that it is difficult to move or carry because it is so big or heavy.
They came panting up to his door with their ~ baggage.
= awkward
ADJ
2.
If you describe a system as ~, you mean that it does not work very well as a result of it being too large or badly organized.
His firm must contend with the ~ Russian bureaucracy.
...an ~ legal system.
= cumbersome
ADJ