be on your best behaviour - definition in the British English Dictionary & Thesaurus - Cambridge Dictionaries Online (US)

Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “be on your best behaviour”

See all translations

be on your best behaviour

to behave extremely well and be very polite on a particular occasion: I'd just met his parents for the first time so I was on my best behaviour.
Translations of “be on your best behaviour”
in Chinese (Traditional) 舉止得體, 以最好的表現示人…
in Chinese (Simplified) 举止得体, 以最好的表现示人…
(Definition of be on your best behaviour from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
Add Cambridge dictionaries to your browser to your website

Word of the Day

lateral thinking

a way of solving a problem by thinking about it in a different and original way and not using traditional or expected methods

Word of the Day

What’s All The Commotion About? (Words to describe sounds)

by Kate Woodford,
May 20, 2015
​​​ In this post we look at a range of words and phrases that we use to describe noise and the absence of noise. Starting with complete quiet, we sometimes use the noun hush to describe silence: A hush fell over the room as the bride walked in./There was a deathly hush (=complete

Read More 

plyscraper noun

May 18, 2015
a skyscraper made mainly from wood The development of engineered timber could herald a new era of eco-friendly ‘plyscrapers’. Christchurch welcomed its first multistorey timber structure this year, there are plans for Vancouver, and the talk is China could follow

Read More