mature vs autumnal

mature and autumnal both are adjectives.

Word	Noun	Adjective	Verb	Adverb
mature	No	Yes	Yes	No
autumnal	No	Yes	No	No

mature (adjective)	autumnal (adjective)
having reached full natural growth or development	of or characteristic of or occurring in autumn
characteristic of maturity	characteristic of late maturity verging on decline
(of birds) having developed feathers or plumage; often used in combination
fully developed or matured and ready to be eaten or used
fully considered and perfected

mature (verb)	autumnal (verb)
cause to ripen and discharge pus
develop and reach maturity; undergo maturation
grow old or older
become due for repayment
cause to ripen or develop fully
develop and work out fully in one's mind