Definition of false-hearted in English:

false-hearted

adjective

  • Deceitful or unfaithful.

    ‘shame on you and your devious, false-hearted marketing’
    • ‘He secured a number of London engagements, in which he was well received, and on 4 June 1870 he appeared in a new play, Two Roses, by James Albery, in which the role of the pretentious and false-hearted Digby Grant suited him admirably.’
    • ‘Here's adieu to all false-hearted true loves.’
    • ‘They were men of true, faithful and public spirits, not false-hearted.’
    • ‘She came to inquire whether the swain who kept her company, and had promised to marry her, would keep his word or be false-hearted.’
    • ‘That is a perennial weakness of princes - a penchant for false-hearted favourites.’
    • ‘"You false-hearted knave," he added, turning to Carfax, "your doom is sealed."’