What does brattiness mean?
Brattiness is an informal noun describing the behaviour typical of a brat: rudeness, petulance, whining, and a self-centred insistence on getting one's own way. It is most often applied to children and adolescents, as in complaints about a toddler's brattiness, but it is equally common as a figurative description of adults who act spoiled or demanding — a celebrity's brattiness on set, say, or an athlete's brattiness after losing. The word carries a clearly negative connotation, though it can be softened into something almost affectionate when describing cheeky, high-spirited misbehaviour that is exasperating but not truly harmful. Derived by adding the suffix '-ness' to 'bratty', it names a quality rather than a person, allowing speakers to characterise conduct without labelling someone permanently. Its informal register makes it a staple of everyday criticism, parenting discussions, and popular commentary.
nounThe quality or behaviour characteristic of a brat; childish rudeness, petulance, or annoying self-centredness.
- Childish rudeness, petulance, or spoiled, attention-seeking behaviour.
- The state or quality of being like a brat; an instance of such behaviour.
"Her sudden brattiness at dinner surprised everyone who knew her as a polite child."
"The film's charm lies in the actor's playful brattiness rather than any genuine malice."
"He outgrew the brattiness of his early twenties and became remarkably considerate."
Rarely pluralised; the uncountable singular form is overwhelmingly preferred, even when referring to repeated instances of the behaviour.
"The novel catalogues the various brattinesses of its privileged young narrator."
'Brattiness' descends from 'brat', a word whose origins are so murky that even etymologists throw up their hands.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of brattiness
Brattiness is formed from the adjective 'bratty' plus the noun-forming suffix '-ness', which turns qualities into abstract nouns. The underlying word 'brat', meaning a child — originally a derogatory term for an unpleasant or badly behaved one — has been part of English since at least the early modern period, first attested in the sixteenth century. Its ultimate origin is uncertain; no secure cognate in other languages has been established, so its deeper ancestry remains unknown.
Related word forms
How brattiness is actually used
Informal and mildly pejorative. Most often applied to children and teenagers, but frequently used figuratively for adults behaving in a spoiled or petulant way. Common in reviews, parenting writing, and casual speech rather than formal prose.
Easily confused with brattiness
A brattice is a wooden partition used to channel air in mines — unrelated in meaning to brattiness despite the similar spelling.