Cumbrous

Part of speech: adjective (a.)

1. Rendering action or motion difficult or toilsome; serving to obstruct or hinder; burdensome; clogging. He sunk beneath the cumbrous weight. Swift. That cumbrousand unwieldy style which disfigures English composition so extensively. De Quincey.

2. Giving trouble; vexatious. [Obs.] A clud of cumbrous gnats. Spenser. -- Cum"brous*ly, adv. -- Cum"brous*ness, n.