American Heritage Dictionary
(3)
Century Dictionary
(4)
GNU Webster's 1913
(1)
WordNet
(3)
Elsewhere on the web
They're all very slow and ponderous, which is odd as everyone says its an upbeat happy album.— Word Magazine -
But one aesthetic preference that our mother did pass on successfully: she told us that the royal 'we' was both pretentious and ponderous, and that we should at all costs avoid it if we wished people not to mock us mercilessly.— Apartment Therapy Main

American Heritage Dictionary (1)
Century Dictionary (1)
Bubble size: how much this word was used in a year
Bubble height: used more or less than expected, vs. all uses evenly distributed
You can expect to see this word about once a week.