GROWN-UP Synonyms: 89 Similar and Opposite Words

grown-up 1 of 3

adjective

ˈgrōn-ˌəp

as in mature

relating to or typical of adults; displaying proper maturity they have yet to find a grown-up way of handling their marital problems

Synonyms & Similar Words

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mature
adult

Antonyms & Near Antonyms

grown-up

2 of 3

noun

as in adult

a fully grown person once you turn 12, you get to eat with the grown-ups at Thanksgiving

Synonyms & Similar Words

Antonyms & Near Antonyms

grown up

3 of 3

verb

past participle of grow up

as in grown

to become mature everyone has to grow up at some point in their lives

Synonyms & Similar Words

Antonyms & Near Antonyms

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of grown-up

Adjective

The trending assortment of fruity scents are way more complex and grown-up, with far higher concentrations of perfume oil — and therefore longevity. —

Venus Wong, refinery29.com, 31 Jan. 2025 Martin was 10 years old, and Kandee was 13 and seemed so grown-up and glamourous. —

Amanda Lee Myers, USA TODAY, 31 Jan. 2025 The hotel feels grown-up and staff effusively handle all of your needs with a striking level of gracious humility. —

Lauren Mowery, Forbes, 14 Jan. 2025 The new film sees the characters more mature, and the challenges Noah and Nick face steadily become more grown-up. —

Stewart Clarke, Deadline, 26 Dec. 2024 Lesson: Dirty towels, a mattress on the floor, holes in comforters and sheets that do double duty as curtains should not be part of a grown-up’s look. —

Marni Jameson, The Mercury News, 20 Dec. 2024 Price upon publish date of this article: $20.35 Stanley 10oz Wine Tumbler $15.99 $20.00 20% off Buy Now at amazon The Stanley Cup is looking a little more grown-up these days. —

Ashley Davis, WWD, 2 Dec. 2024 The game features a whole host of characters from Disney and Pixar media, but the storyline is surprisingly grown-up and touching. —

Louryn Strampe, WIRED, 30 Nov. 2024 As the boy who gets his wish to be big, Hanks gives a glorious, hilarious, and sweet performance as a 12-year-old in a grown-up’s body. —

Tim Grierson, Vulture, 2 Nov. 2024

Noun

Reportedly shot for less than $100,000, this tale of Pooh and Piglet all grown-up and running amok recently opened to box office success in Mexico and is currently playing on cinema screens around America. —

Clark Collis, EW.com, 16 Feb. 2023

Recent Examples of Synonyms for grown-up

Adjective

During this entire period, the Palestinians failed to prepare for statehood in any mature way.

— Justin Gest, Newsweek, 11 Feb. 2025
In fact, fire is essential to the germination of its seeds so that if their viability expires and then a fire comes along and incinerates mature plants of this species, that could spell this species’ extinction in the area where the fire occurred.

— Joshua Siskin, Orange County Register, 8 Feb. 2025