legitimate vs authoritative

legitimate and authoritative both are adjectives.

Word	Noun	Adjective	Verb	Adverb
legitimate	No	Yes	Yes	No
authoritative	No	Yes	No	No

legitimate (adjective)	authoritative (adjective)
of marriages and offspring; recognized as lawful	endowed with authority
in accordance with recognized or accepted standards or principles	having authority or ascendancy or influence
authorized, sanctioned by, or in accordance with law	of recognized authority or excellence
based on known statements or events or conditions

legitimate (verb)	authoritative (verb)
make (an illegitimate child) legitimate; declare the legitimacy of (someone)
show or affirm to be just and legitimate
make legal