Synonyms for Ponderous:

adj.

big (adjective)
heavyweight.
bulky (adjective)
cumbersome.
clumsy (adjective)
heavy-handed, lumpish.
cumbersome (adjective)
leaden.
dull (adjective)
boorish, dim, dull, soporific, stupefied, bovine, comatose, drowsy, benumbed, slow, apathetic, blunt, obtuse, thick-witted, sluggish, lethargic, loutish, doltish, besotted, dense, sleepy, cloddish.
fat (adjective)
bovine, inflated.
heavy (adjective)
dense, excessive, leaden, pressing, oppressive, heavy, gravitational, massive, study at heavy, lifeless, indifferent, weighty.
large (adjective)
massive.
lumbering (adjective)
heavy-footed.
ornately spoken or written (adjective)
rhetorical, embellished, flamboyant, grandiloquent, lofty, rich, bombastic, ornate, rococo, gilded, fancy, inflated, flowery, splashy, baroque, elaborate, florid, voluble, highfalutin, high-sounding, eloquent, bloated, opulent, showy.
ponderous (adjective)
massive, cumbrous, heavy, long-winded, lifeless, elephantine, dull, hefty, weighty, verbose, oppressive, lumbering.
wordy (adjective)
grandiloquent, chatty, talkative, rambling, bombastic, wordy, lengthy, excessive, wandering, verbose, endless, superfluous, long-winded, windy, loquacious, featherbedding.

n.

circuitous, diffuse, declamatory, economical, discursive, clean, conversational, articulate, crisp. cumbersome, lumpish, cumbrous, lumpy, easy. good, heavy-handed, elephantine. ponderous (noun)
heavy-footed, lumbering, uninteresting, heavy.

Other synonyms:

cumbrous, heavyweight, cumbersome. hefty, lumpy. heavy-handed, lumpish. clumsy
elephantine.
Other relevant words:
easy, heavy-footed, uninteresting, lifeless, lumpy, lumbering, cumbrous, heavy-handed, lumpish, heavyweight, cumbersome, hefty, elephantine.

Usage examples for ponderous

  1. Mrs. Snow clasped her hands with a gesture of dismay, and sat as if transfixed by the spectacle of a ponderous lady, in an awe- inspiring bonnet, who came walking slowly down the street. – Kitty's Class Day And Other Stories by Louisa M. Alcott
  2. I accompanied him to the door, and watched his ponderous figure making its way to the cottage, near the entrance of which I saw his wife waiting for him; then I whistled to Ta- ta, who had followed the stranger for a few steps in order to get a better view of his retreat, and, taking my hat, went down the drive for a walk. – A Witch of the Hills, v. 1-2 by Florence Warden
  3. And the young man, admiring the face framed in gold hair and black straw, pushed forward a ponderous volume that lay open on the counter. – The Port of Adventure by Charles Norris Williamson and Alice Muriel Williamson