faithfully

American  

[feyth-fuh-lee] / ˈfeɪθ fə li /

adverb

1. in a strict or thorough way.

   This plan was faithfully carried out to the last detail.

2. remaining true to one’s promises, allegiance, affection, or beliefs; loyally.

   The old man lived as faithfully as he could, always trying to set an example for younger members of his church.

3. in a way that is reliable and can be trusted or believed.

   The plant will die back to the ground during a hard freeze; however, it faithfully returns in spring.

   In accepting taxpayer funds, the recipient agrees to faithfully account for all monies received from the county.

4. in a way that adheres to fact, a standard, or an original.

   The tribute band tries to faithfully reproduce the sound, style, arrangement, and instrumentation of the original artist’s recordings.

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Other Word Forms

• overfaithfully
  adverb
• pseudofaithfully
  adverb
• quasi-faithfully
  adverb

Etymology

Origin of faithfully

faithful ( def. ) + -ly

Explanation

To act faithfully is to behave in a dependable and honorable way. A dog who waits faithfully outside your school until you get out of class is devoted and trustworthy. The adverb faithfully describes an action or behavior that's faithful — in other words, it's steadfast, loyal and reliable. An actor's parents might faithfully attend every play he's in, no matter how small his role is. Your devout uncle might faithfully attend church every single Sunday. In both examples, a person is dependable. The earliest meaning of faithfully was "acting in a way full of (religious) faith," or being pious, especially as a Christian.

Example Sentences

Still, this is Gabaldon’s story, and though the series is ending before her 10th and final “Outlander” novel is published, it has followed that story faithfully.

From Los Angeles Times • May 12, 2026

Consider Utah, whose state Supreme Court has faithfully enforced a voter-approved gerrymandering ban.

From Slate • May 11, 2026

The author has been faithfully logging her own schedule for a full decade, dividing each day’s 24 hours into 30-minute increments on a spreadsheet.

From The Wall Street Journal • May 8, 2026

"I worked honestly and faithfully with the Americans for years," fellow evacuee Latif tells the BBC.

From BBC • Mar. 18, 2026

Michael stands at the door like a sentry, clipboard in hand, checking in all the new arrivals, faithfully keeping the count.

From "Linked" by Gordon Korman

Related Words

• conscientiously