What does adultly mean?
"Adultly" is an adverb meaning in a manner befitting an adult — that is, with the maturity, restraint, and sound judgment expected of a grown person. It is typically used to praise behavior that rises above pettiness or impulsiveness: someone who negotiates a dispute calmly, accepts criticism gracefully, or handles a difficult family matter without drama can be said to act adultly. The word is comparatively rare and leans informal, appearing more often in everyday commentary, self-help writing, and casual speech than in formal or academic prose. Its connotation is almost entirely favorable, implying responsibility and emotional steadiness, and it is frequently deployed in contrast to its natural opposite, "childishly." Though not part of most speakers' active vocabulary, it is transparently formed from the familiar adjective "adult," so its meaning is instantly graspable — making it a handy, if underused, way to commend genuinely mature conduct.
adverbIn an adult manner; in a way that shows the maturity, judgment, or responsibility characteristic of an adult.
- In a manner typical of or appropriate to an adult; with maturity and responsibility.
"She handled the disagreement adultly, listening to both sides before responding."
"Rather than storming out, he raised his concerns adultly and asked for a meeting."
"The siblings agreed to divide the estate adultly, without lawyers or grudges."
"Adultly" is one of those rare adverbs most people have never said aloud — yet when someone finally acts like a grown-up, it's exactly the word for it.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of adultly
"Adultly" is formed by adding the adverbial suffix "-ly" to "adult," an English word borrowed from Latin "adultus," the past participle of "adolescere," meaning "to grow up" or "to grow to maturity." The Latin root also gives English "adolescent" and "adolescence," making them close relatives of "adult" and its adverbial derivative. The compound formation follows the standard English pattern of deriving adverbs from adjectives.
Related word forms
How adultly is actually used
A relatively uncommon adverb, more likely to appear in informal commentary or advice contexts than in formal prose. It carries a positive connotation of maturity and level-headedness, often used to contrast with childish or impulsive behavior.
Easily confused with adultly
"Admittedly" means conceding that something is true, while "adultly" means behaving in a mature, grown-up manner.