Unchildish

adj

adj ·Rare ·Advanced level

Definitions

Adjective
  1. 1
    Not childish.

    "But that doesn’t mean it has been easy for her to outgrow her former self. Ms. Rimes recently turned 25, and though she has always had a remarkably unchildish voice (her 1996 breakthrough single was a beautiful, Patsy Cline-ish song called “Blue”), she has spent much of this decade trying to figure out where she fits on the country-pop continuum."

Example

More examples

"But that doesn’t mean it has been easy for her to outgrow her former self. Ms. Rimes recently turned 25, and though she has always had a remarkably unchildish voice (her 1996 breakthrough single was a beautiful, Patsy Cline-ish song called “Blue”), she has spent much of this decade trying to figure out where she fits on the country-pop continuum."

Etymology

From un- + childish.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.