Emily Dickinson Lexicon

WEIGHT'Y, a.

1. Having great weight; heavy; ponderous; as, a weighty body.
2. Important; forcible; momentous; adapted to turn the balance in the mind, or to convince; as, weighty reasons; weighty matters; weighty considerations or arguments. – Shak.
3. Rigorous; severe; as, our weightier judgment. [Not in use.] – Shak.