be on best behavior
VERB
behave
Synonyms
STRONGEST
STRONG
WEAK
act correctly
act one's age
act with decorum
be civil
be good
be nice
be orderly
comport oneself
conduct oneself properly
demean oneself
deport oneself
discipline oneself
keep one's nose clean
keep the peace
live up to
manage oneself
mind one's manners
mind one's p's and q's
observe golden rule
observe the law
play fair
shape up
toe the mark
watch one's step
Antonyms
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Black tie is obligatory, and everyone is supposed to be on best behavior at an event oozing with seriousness.
From Reuters ● Feb. 26, 2011
