mature vs senesce

mature is an adjective but senesce is not an adjective.

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

As verbs, mature and senesce are synonyms defined as:

Other synonyms of mature include age, get on, maturate.

mature (adjective)	senesce (adjective)
having reached full natural growth or development
characteristic of maturity
(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)	senesce (verb)
cause to ripen and discharge pus	grow old or older
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