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