Pronunciation: (wā'tē), [key]
—adj., weight•i•er, weight•i•est.
1. having considerable weight; heavy; ponderous: a weighty bundle.
2. burdensome or troublesome: the weightier cares of sovereignty.
3. important or momentous: weighty negotiations.
4. having or exerting influence, power, etc.; influential: a weighty merchant of Boston.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.