adultgrown-upgrownfully grownfull-grownof agefully developedfully fledgedin one's primein full bloomnubile
2
having reached the most advanced stage in a process.
Van Gogh's mature work
3
(of a bill) due for payment.
动词
1
(of an organism) become physically mature.
children mature at different ages
同义词：
be fully grownbe full-grownbe fully developeddevelop fullycome of agebecome adultreach adulthoodreach maturitydevelopgrowevolvebloomblossomflourishthrivecome to fruition
2
(of an insurance policy, security, etc.) reach the end of its term and hence become payable.
