Weight″y (?), a. [Compar.Weightier (?); superl.Weightiest.]
1. Having weight; heavy; ponderous; as, a weighty body.
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. “Attend our weightier judgment.” Shak.
Syn. — Heavy; ponderous; burdensome; onerous; forcible; momentous; efficacious; impressive; cogent.