having relatively great weight; heavy; a weighty load; a weighty package'
powerfully persuasive; a cogent argument; a telling presentation; a weighty argument
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
weighing heavily on the spirit; causing anxiety or worry; weighty problems'
excessively fat; a weighty man