adj. (weightier, weightiest) 1 weighing much; heavy. 2 momentous, important. 3 (of utterances etc.) deserving consideration; careful and serious. 4 influential, authoritative. weightily adv. weightiness n.
WEIGHTY
Meaning of WEIGHTY in English
Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012