← BackshareGuesstruehearted/ˈtruːˌhɑːrtɪd/adjectiveLoyal, faithful, and sincere in feelings or support.She remained a truehearted friend even during difficult times.His truehearted devotion to the team never wavered.The truehearted knight swore to protect the kingdom.SynonymsloyalfaithfuldevotedsteadfasttrustworthyAntonymsdisloyalfaithless