Au‐thor″i‐ta‐tive (�), a. 1. Having, or proceeding from, due authority; entitled to obedience, credit, or acceptance; determinate; commanding.
The sacred functions of authoritative teaching.
Barrow.
2. Having an air of authority; positive; dictatorial; peremptory; as, an authoritative tone.
The mock authoritative manner of the one, and the insipid mirth of the other.
Swift.
— Au‐thor″i‐ta‐tive‐ly, adv. — Au‐thor″i‐ta‐tive‐ness, n.