2. Adapted to turn the balance in the mind, or to convince;
important; forcible; serious; momentous. ``For sundry
weighty reasons.'' --Shak.
Let me have your advice in a weighty affair.
--Swift.
3. Rigorous; severe; afflictive. [R.] ``Attend our weightier
judgment.'' --Shak.
Syn: Heavy; ponderous; burdensome; onerous; forcible;
momentous; efficacious; impressive; cogent.