Also found in: Thesaurus, Medical, Legal, Idioms, Encyclopedia.
Related to behaviour: behavior, behaviour management


n. Chiefly British
Variant of behavior.


(bɪˈheɪvjə) or


1. manner of behaving or conducting oneself
2. on one's best behaviour behaving with careful good manners
3. (Psychology) psychol
a. the aggregate of all the responses made by an organism in any situation
b. a specific response of a certain organism to a specific stimulus or group of stimuli
4. the action, reaction, or functioning of a system, under normal or specified circumstances
[C15: from behave; influenced in form by Middle English havior, from Old French havoir, from Latin habēre to have]
beˈhavioural, beˈhavioral adj


(bɪˈheɪv yər)

n. Chiefly Brit.
usage: See -or 1.


Someone's behaviour is the way they behave.

I had been puzzled by his behaviour.
...the obstinate behaviour of a small child.

Note that the American spelling of this word is behavior.

ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.behaviour - the action or reaction of something (as a machine or substance) under specified circumstancesbehaviour - the action or reaction of something (as a machine or substance) under specified circumstances; "the behavior of small particles can be studied in experiments"
activeness, activity, action - the state of being active; "his sphere of activity"; "he is out of action"
2.behaviour - (behavioral attributes) the way a person behaves toward other peoplebehaviour - (behavioral attributes) the way a person behaves toward other people
trait - a distinguishing feature of your personal nature
manners - social deportment; "he has the manners of a pig"
citizenship - conduct as a citizen; "award for good citizenship"
swashbuckling - flamboyantly reckless and boastful behavior
correctitude, properness, propriety - correct or appropriate behavior
improperness, impropriety - an improper demeanor
personal manner, manner - a way of acting or behaving
3.behaviour - (psychology) the aggregate of the responses or reactions or movements made by an organism in any situation
activity - any specific behavior; "they avoided all recreational activity"
territoriality - the behavior of a male animal that defines and defends its territory
psychological science, psychology - the science of mental life
4.behaviour - manner of acting or controlling yourselfbehaviour - manner of acting or controlling yourself
activity - any specific behavior; "they avoided all recreational activity"
aggression - deliberately unfriendly behavior
bohemianism - conduct characteristic of a bohemian
dirty pool - conduct that is unfair or unethical or unsportsmanlike
dirty tricks - underhand commercial or political behavior designed to discredit an opponent
offense, offensive activity, discourtesy, offence - a lack of politeness; a failure to show regard for others; wounding the feelings or others
easiness - the quality of being easy in behavior or style; "there was an easiness between them"; "a natural easiness of manner"
the way of the world, the ways of the world - the manner in which people typically behave or things typically happen; "the ordinary reader is endowed with considerable wisdom and knowledge of the way of the world"; "she was well-versed in the ways of the world before she had taken the veil"; "he was amazingly innocent of the ways of the world"


1. conduct, ways, actions, bearing, attitude, manner, manners, carriage, demeanour, deportment, mien (literary), comportment He was asked to explain his extraordinary behaviour.
2. action, working, running, performance, operation, practice, conduct, functioning This process modifies the cell's behaviour.
"Perfect behaviour is born of complete indifference" [Cesare Pavese This Business of Living]
hegîunhegîun, viîbrögî
cách cư xử


behavior (US) [bɪˈheɪvjəʳ]
A. N
1. [of person] → conducta f, comportamiento m
good behaviourbuena conducta f
to be on one's best behaviourcomportarse lo mejor posible
you must be on your best behaviourtienes que portarte lo mejor posible
2. (Mech etc) → funcionamiento m
B. CPD behaviour pattern Npatrón m de conducta


[bɪˈheɪvjər] (British) behavior (US) n
(= conduct) [person] → comportement m, conduite f
to be on one's best behaviour → très bien se tenir
(= actions) [people, animals] → comportement m; [organizations, organisms, machines] → comportement m


, (US) behavior
(= manner, bearing)Benehmen nt; (esp of children also) → Betragen nt; to be on one’s best behavioursich von seiner besten Seite zeigen, sein bestes Benehmen an den Tag legen
(towards others) → Verhalten nt(to(wards) gegenüber)
(of car, machine)Verhalten nt


behavior (Am) [bɪˈheɪvjəʳ] ncomportamento
to be on one's best behaviour → sforzarsi di comportarsi bene


(biˈheiv) verb
1. to act in a suitable way, to conduct oneself (well). If you come, you must behave (yourself); The child always behaves (himself) at his grandmother's.
2. to act or react. He always behaves like a gentleman; Metals behave in different ways when heated.
beˈhaviour , (American) beˈhavior (-jə) noun
1. way of behaving. the behaviour of the pupils.
2. actions or reactions. the behaviour of rats; the behaviour of metals in acids.
ˌwell/ˌbadly- etc beˈhaved adjective
good (bad etc) in manners or conduct. badly-behaved children.


سُلُوك chování opførsel Benehmen συμπεριφορά conducta käyttäytyminen comportement ponašanje comportamento 態度 행동 gedrag oppførsel zachowanie comportamento поведение uppförande พฤติกรรม davranış cách cư xử 行为
References in classic literature ?
Otto pretended not to be surprised at Antonia's behaviour.
cried Hester Prynne, who, however, inured to such behaviour on the elf-child's part at other seasons, was naturally anxious for a more seemly deportment now.
I do not say it is so; but you will do well to consider whether it is so or not, and to regulate your behaviour accordingly.
Dashwood feel this ungracious behaviour, and so earnestly did she despise her daughter-in-law for it, that, on the arrival of the latter, she would have quitted the house for ever, had not the entreaty of her eldest girl induced her first to reflect on the propriety of going, and her own tender love for all her three children determined her afterwards to stay, and for their sakes avoid a breach with their brother.
This the master horse observed by my behaviour, and therefore sent the YAHOO back to his kennel.
The subject elevated him to more than usual solemnity of manner, and with a most important aspect he protested that "he had never in his life witnessed such behaviour in a person of rank-- such affability and condescension, as he had himself experienced from Lady Catherine.
Tho' certainly nothing could to any reasonable Being, have appeared more satisfactory, than so gratefull a reply to her invitation, yet I know not how it was, but she was certainly capricious enough to be displeased with our behaviour and in a few weeks after, either to revenge our Conduct, or releive her own solitude, married a young and illiterate Fortune- hunter.
Vernon, I think, was a great deal too kind to her when he was in Staffordshire; her behaviour to him, independent of her general character, has been so inexcusably artful and ungenerous since our marriage was first in agitation that no one less amiable and mild than himself could have overlooked it all; and though, as his brother's widow, and in narrow circumstances, it was proper to render her pecuniary assistance, I cannot help thinking his pressing invitation to her to visit us at Churchhill perfectly unnecessary.