Grown-up

adj. thoughtful, capable everyday

What it means

Mature, responsible, and suitable for an adult.

Reach for it when describing behavior or judgment as mature and responsibly adult

Her grown-up response focused on repair instead of blame.

Words to choose between 6

By register, from playful at the top to literary at the bottom. Tap a word to see when it fits.
everyday
warm
professional
literary
  • everyday

    adult

    Fits when age category or adult suitability is what matters

    Careful Adult can mean explicit content and does not automatically imply responsibility.

  • everyday

    sensible

    Fits when a practical choice needs modest approval

    Careful Sensible describes one decision and may not support a claim of maturity.

  • warm

    levelheaded

    Fits when calm judgment under pressure is central

    Careful Levelheaded misses independence, accountability, and other aspects of adult conduct.

  • professional

    mature

    Fits when sound emotional judgment is the specific quality

    Careful Mature also applies to development, flavor, or content, which can blur the adult-behavior sense.

  • professional

    responsible

    Fits when reliable ownership of duties deserves the praise

    Careful Responsible behavior may be shown by a child and is not synonymous with being grown-up.

  • literary

    worldly

    Fits when experience and social sophistication are intended

    Careful Worldly can imply cynicism or privilege rather than ethical maturity.

Opposites 3

  • childish
  • immature
  • irresponsible

Common phrases 3

  • grown-up response

    A grown-up response begins by acknowledging the harm.

  • grown-up conversation

    They had a grown-up conversation about the project's limits.

  • feel grown-up

    Managing her first budget made the apprentice feel grown-up.

Usage notes

Keep in mind

Grown-up can patronize adults or imply that children cannot show maturity. Name the responsible behavior when possible.

Definitions and examples are written for this site. How words are chosen Recording: Flame, not lame, American accent, from Wikimedia Commons, CC0 Updated