Noah Webster
Oracular
ORAC'ULAR,
ORAC'ULARLY,
ORAC'ULOUS, adjective
1. Uttering oracles; as an oracular tongue.
The oraculous seer.
2. Grace; venerable; like an oracle; as an oracular shade.
They have something venerable and oracular in that unadorned gravity and shortness in the expression.
3. Positive; authoritative; magisterial; as oraculous expressions of sentiments.
4. Obscure; ambiguous, like the oracles of pagan deities.