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

Alexander Skarsgård and David Dastmalchian Steve Wilkie—Apple TV+ Creators Paul and Chris Weitz are faithful to Wells’ first Murderbot novella, but there are plenty of changes that expand the book into an exciting episodic structure. —Rory Doherty, Time, 16 May 2025

The fact that Dolly was apparently so faithful for so long will seem to some as strange as if Bacchus turned out to be a stay-at-home dad. —Casey Cep, New Yorker, 15 May 2025

Noun

For the Canadian faithful, the breaking of the curse likely resides in the Western Conference, with the Oilers and Jets having the understandably favorable odds of northern teams entering the postseason. —Tyler Small, Forbes.com, 20 Apr. 2025

Arriving in the not-so-early morning, the sprawling new collection offered 30 tracks for the Carti faithful, boasting a guest list of such big names as The Weeknd, Travis Scott, Future, Lil Uzi Vert, Young Thug and even man-of-the-moment Kendrick Lamar. —Andrew Unterberger, Billboard, 19 Mar. 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