heavy and slow moving slow and clumsy because of great weight heavy in a clumsy way; bulky very heavy very heavy, unwieldy from weight slow and clumsy because of great weight; dull of great weight; heavy; massive. weighed-down; moving slowly Laden with 20 kilograms of college text books, the freshman moved ponderously across the campus. slow and clumsy because of great weight. \\"a swarthy, ponderous giant of a man\\". synonyms: clumsy, slow, heavy, awkward, lumbering, slow-moving, cumbersome, heavy-footed, ungainly, graceless, maladroit, uncoordinated, blundering, like a bull in a china shop; informal clodhopping, clunky. Definition of Ponderous very boring or dull Examples of Ponderous in a sentence The students grew silent when they realized they would have to sit through a ponderous three-hour lecture. Because I like creative articles, I find reading a newspaper to be a ponderous task. John quickly fell asleep during the ponderous movie. If you are going to one of Barney\\'s ponderous parties, you should be prepared to be bored all night long. Presentations should be exciting and engaging not ponderous. As a writer, you should try hard to avoid writing ponderous passages that will not hold your readers\\' attention. The president\\'s speech was so ponderous I changed the channel two minutes into it. According to the fashion critics, the designer\\'s new collection is ponderous and unimaginative. I wish we could vote at home because standing in line on Election Day is so ponderous! Going to one of Maggie\\'s ponderous events is as exciting as watching paint dry.