This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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adj. Having great weight.

adj. Unwieldy from weight or bulk.

adj. Lacking grace or fluency; labored and dull: a ponderous speech. See Synonyms at heavy.

adj. Heavy, massive, weighty.

adj. Serious, onerous, oppressive.

adj. Clumsy, unwieldy, or slow, especially due to weight.

adj. Dull, boring, tedious; long-winded in expression.

adj. Characterized by or associated with pondering.

adj. Dense.

adj. Very heavy; weighty

adj. Important; momentous; forcible.

adj. Heavy; dull; wanting; lightless or spirit

Having weight; weighty; heavy; especially, very heavy; hence, clumsy or unwieldy by reason of weight: used both literally and figuratively.

Weighty; important; momentous.

Disposed to ponder; thinking; thoughtful.

adj. having great mass and weight and unwieldiness

adj. labored and dull

adj. slow and laborious because of weight

"Their thirty and forty - thousand-ton battleships slowed down half a dozen miles offshore and maneuvered in ponderous evolutions, while tiny scout-boats (lean, six-funneled destroyers) ran in, cutting blackly the flashing sea like so many sharks."

heavy    uninteresting    heavy-footed   

ponderous spar   

ponderously    ponderousness   

weighty    important    momentous    forcible    heavy   

massive    stately    clumsy    mighty    bulky