au·thor·i·ta·tive /əˈθɑrəˌtetɪv, ɔ, ˈθɔr-/
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.
adj 1: having authority or ascendancy or influence; "an important
official"; "the captain's authoritative manner" [syn:
2: of recognized authority or excellence; "the definitive work
on Greece"; "classical methods of navigation" [syn: classical,
3: sanctioned by established authority; "an authoritative
communique"; "the authorized biography" [syn: authorized,