on one's best behavior

Definition of on one's best behavior

  1. :  behaving very politely and well The children promised to be on their best behavior.

Word by Word Definitions

  1. : superlative ofgood

    :  excelling all others

    :  most productive of good :  offering or producing the greatest advantage, utility, or satisfaction

  1. : superlative ofwell

    :  in the best (see 1best) way :  to greatest advantage

    :  most

  1. :  the best (see 1best) state or part

    :  one that is best

    :  the greatest degree of good or excellence

  1. :  to get the better of :  outdo

  1. :  had best (see 2best 1)

  1. :  the manner of conducting (see 2conduct 4) oneself

    :  anything that an organism does involving action and response to stimulation

    :  the response of an individual, group, or species to its environment

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