WordReference English-Turkish Dictionary © 2019:
grown up adjadjective: Describes a noun or pronoun--for example, "a tall girl," "an interesting book," "a big house."
| (adult, mature)||yetişkin s.|
| || ||olgun s.|
|Not: A hyphen is used when the adjective precedes the noun|
| ||The little girl thought it was very grown-up to wear lipstick.|
|grown-up nnoun: Refers to person, place, thing, quality, etc. || informal (adult person)||yetişkin i.|
| ||It's a movie for grown-ups; it's certainly not for children.|