Word: ponderous
Phonetic:
/ˈpɒn.dəɹ.əs/
Listen:
Heavy, massive, weighty.
(by extension) Serious, onerous, oppressive.
Clumsy, unwieldy, or slow, especially due to weight.
Dull, boring, tedious; long-winded in expression.
Characterized by or associated with pondering.
Dense.
You can find a list of possible crossword clues for PONDEROUS below.