01 a. Rendering action or motion difficult or toilsome; serving to obstruct or hinder; burdensome; clogging.
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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.
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2.
Giving trouble; vexatious.[Obs.]“A clud of cumbrous gnats.” — Spenser.