ponderous
/ˈpɒn.dəɹ.əs/
adjective
Meaning
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.
Synonyms