pon·der·ous 
/ˈpɑ:ndərəs/ adjective
/ˈpɑ:ndərəs/ adjective [more ponderous; most ponderous] 1 : very boring or dull
▪ students struggling to stay awake during a ponderous lecture 2 : slow or awkward because of weight and size
▪ the elephant's ponderous movements
▪ students struggling to stay awake during a ponderous lecture
▪ the elephant's ponderous movements
— pon·der·ous·ly adverb
▪ a ponderously technical lecture ▪ He walked ponderously up the stairs.
▪ a ponderously technical lecture ▪ He walked ponderously up the stairs.
— pon·der·ous·ness noun [noncount]
