faithful

1 of 2

adjective

faith·​ful ˈfāth-fəl 

1

: steadfast in affection or allegiance : loyal

a faithful friend

2

: firm in adherence to promises or in observance of duty : conscientious

a faithful employee

3

: given with strong assurance : binding

a faithful promise

4

: true to the facts, to a standard, or to an original

a faithful copy

5

obsolete : full of faith

faithfully

ˈfāth-fə-lē 

adverb

faithfulness noun

faithful

2 of 2

noun

1

plural in construction

a

: church members in full communion and good standing

—used with the

b

: the body of believers in Islam

—used with the

2

plural faithful or faithfuls : one who is faithful

especially : a loyal follower, member, or fan

party faithfuls

Synonyms

Adjective

• constant
• dedicated
• devoted
• devout
• down-the-line
• fast
• good
• loyal
• pious
• staunch
• stanch
• steadfast
• steady
• true
• true-blue

Choose the Right Synonym for faithful

faithful, loyal, constant, staunch, steadfast, resolute mean firm in adherence to whatever one owes allegiance.

faithful implies unswerving adherence to a person or thing or to the oath or promise by which a tie was contracted.

faithful to her promise

loyal implies a firm resistance to any temptation to desert or betray.

remained loyal to the czar

constant stresses continuing firmness of emotional attachment without necessarily implying strict obedience to promises or vows.

constant friends

staunch suggests fortitude and resolution in adherence and imperviousness to influences that would weaken it.

a staunch defender of free speech

steadfast implies a steady and unwavering course in love, allegiance, or conviction.

steadfast in their support

resolute implies firm determination to adhere to a cause or purpose.

a resolute ally

Examples of faithful in a Sentence

Adjective

She has provided the company with many years of faithful service.

He insists that he has always been faithful to his wife.

Recent Examples on the Web

Adjective

Duke phenom Cooper Flagg got a standing ovation from the Cameron Indoor faithful on Monday night in what may have been his final home game in a Blue Devil uniform. —Ryan Morik, Fox News, 4 Mar. 2025

Vatican officials can be faithful to the highest standards of their religion, truly wishing to serve the church and the common good of humanity. —Daniel Speed Thompson, The Conversation, 3 Mar. 2025

Noun

Who will lead the 1.3 billion Catholic faithful if Francis' health worsens? —Mark Joseph, Newsweek, 24 Feb. 2025

Davis exited what had been a first-class introduction to the Mavs faithful late in the third quarter. —Anthony Crupi, Sportico.com, 12 Feb. 2025

Word History

Etymology

Adjective

Middle English feithful, from feith faith entry 1 + -ful -ful entry 1

Noun

derivative of faithful entry 1

First Known Use

Adjective

14th century, in the meaning defined at sense 1

Noun

15th century, in the meaning defined at sense 1a

Phrases Containing faithful

• the faithful

Rhymes for faithful

• unfaithful

Kids Definition

faithful

1 of 2 adjective

faith·​ful ˈfāth-fəl 

1

: loyal sense 1b

a faithful friend

2

: firm in keeping promises or in fulfilling duties

a faithful worker

3

: true to the facts : accurate

faithful copy

faithfully

-fə-lē 

adverb

faithfulness noun

faithful

2 of 2 noun

plural faithful or faithfuls

: one that has faith or is faithful