Words similar to grown-up

Example sentences for: grown-up

How can you use “grown-up” in a sentence? Here are some example sentences to help you improve your vocabulary:

The "friend" sounds like the kind of person we used to call "a user" in junior high, or "a narcissist" in grown-up psychological circles.
While at some point all grown-up children become, to a greater or lesser degree, parents to their parents, your situation is complicated by, at best, a personality disorder, and at worst, mental illness.
The content is the same, of course, but the grown-up version cost about two pounds more than the kids' version, and, I presume, looks more sober and serious.
The end is even sweeter, and pairs clasped hands: the grown-up hand and the kiddie hand; the black hand and the white hand, and so on.
Throughout the entire debate, in fact, Bradley's facial expressions and body language were those of a grown-up compelled to contend with an obnoxious punk.