adjective
maturer; -est
[or more ~; most ~]
having or showing the mental and emotional qualities of an adult
having a fully grown or developed body :grown to full size
having reached a final or desired state
not young :middle-aged or older
based on careful thought
showing the highest level of skill that a person develops
finance :having reached the time when an amount of money (such as money for a government bond or an insurance policy) must be paid :due for payment
verb
-tures; -tured; -turing
[no obj] :to become mature: such as
to become fully developed in the body and mind
to continue developing to a desired level
c finance :to become due for payment