adjective
1.
firm in adherence to whatever one is bound to by duty or promise
a faithful public official, conscientious and above reproach
Synonyms: allegiant, ardent, constant, ||dinky-di, fast, liege, loyal, resolute, staunch, steadfast, steady, true
Related Word: dependable, reliable, tried, trustworthy; affectionate, devoted, loving; dyed-in-the-wool
Contrasted words: disloyal, false, perfidious, traitorous, treacherous; fickle, inconstant, unstable
Antonyms: faithless
2.
Synonyms: true 3, just, right, strict, undistorted, veracious, veridical
Idioms: at one with, on all fours with
3.
Synonyms: authentic 1, convincing, credible, trustworthy, trusty