Ponderous
/pˈɑndərəs/
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Definition
(adj) Heavy, massive, weighty.
Sentence Examples
Seals are clumsy and ponderous on land, but very graceful in the water.
The old professor's lectures are long-winded and ponderous.
CEFR Practice Quiz
The professor's ____ lecture style made it difficult for students to stay engaged for the full hour.