bulky

adj

1. Being large in size, mass, or volume; big, fat or muscular.

   “Action such as this, filmed under great difficulty with a bulky, hand-cranked camera, revealed the possibilities of the movies and was quite startling in those early days.”

   “Needless to say, one's seat must be booked in advance and a platoon of urbane officials, one to each door of the train, awaits passengers to usher them to their seats and relieve them of their bulkier baggage.”

   “The captain did a safety drill. This covered where the emergency position-indicating radio beacon (EPIRB) was located, how to make a mayday call, and where the fire extinguishers were. A crew member demonstrated how to put on an immersion suit. These survival suits are waterproof full-body garments with a hood and integral three-finger gloves and boots. They are bulky and hard to get on but far more likely to save your life in cold water than a lifejacket.”

2. Unwieldy.
3. Having excess body mass, especially muscle.