intr.v. lum·bered, lum·ber·ing, lum·bers 1. To walk or move clumsily or heavily. See Synonyms at blunder. 2. To move with a rumbling noise. [Middle English lomeren, possibly of Scandinavian origin; akin to Swedish dialectal loma, to move heavily.] lumber·ing·ly adv. |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.