1 : weighing heavily on the spirit; causing anxiety or worry; "weighty problems"
2 : powerfully persuasive; "a cogent argument"; "a telling presentation"; "a weighty argument"
3 : of great gravity or crucial import; requiring serious thought; "grave responsibilities"; "faced a grave decision in a time of crisis"; "a grievous fault"; "heavy matters of state"; "the weighty matters to be discussed at the peace conference"
