Definition of viper in one's bosom in English:

viper in one's bosom

A person whom one has supported but now behaves treacherously towards one.
More example sentences
  • Thank goodness one politician opposed their entry - or we could have this viper in our bosom!
  • Apparently he has been unconsciously nursing a viper in his bosom, for the same Science now ‘turns and strikes him.’
  • Why nourish a viper in one's bosom, cultivate an adversary, possibly an enemy?
See parent entry: viper

Definition of viper in one's bosom in:

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Word of the day hubris
Pronunciation: ˈhjuːbrɪs
noun
excessive pride or self-confidence