marked by or showing a strong sense of duty or responsibility; conscientious
faithful attendance
3.
accurate; reliable; exact
a faithful copy
4. Obsolete
full of faith, esp. religious faith
Idioms:
the faithful
SYNONYMY NOTE: faithful implies steadfast adherence to a person or thing to which one is bound as by an oathor obligation [a faithful wife]; loyal implies undeviating allegiance to a person, cause, institution, etc. which one feelsmorally bound to support or defend [a loyal friend]; constant suggests freedom from fickleness in affections or loyalties [a constant lover]; staunch (or , stanch) implies such strong allegiance to one's principles or purposes as not to be turnedaside by any cause [a staunch defender of the truth]; resolute stresses unwavering determination, often in adhering to one's personal ends or aims[resolute in one's decision]
OPPOSITE: faithless
Derived forms
faithfully (ˈfaithfully)
adverb
faithfulness (ˈfaithfulness)
noun
Word origin
ME
Examples of 'faithful' in a sentence
faithful
I'm acting solely with his welfare in mind, and the truth is his ghastly girlfriend hasn't been faithful to him.
Howatch, Susan ABSOLUTE TRUTHS (2004)
Only Gitalis remained, faithful, cranky, dissatisfied genius that he was.
Spellman, Cathy Cash PAINT THE WIND (2004)
In other languages
faithful
British English: faithful /ˈfeɪθfʊl/ ADJECTIVE
If you are faithful to a person, organization, or idea, you remain firm in your support for them.