from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Of or associated with letters or the writing of letters.
- adj. Being in the form of a letter: epistolary exchanges.
- adj. Carried on by or composed of letters: an epistolary friendship.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. of or relating to letters, or the writing of letters
- adj. carried on by written correspondence
- adj. in the manner of written correspondence
from the GNU version of the Collaborative International Dictionary of English
- adj. Pertaining to epistles or letters; suitable to letters and correspondence.
- adj. Contained in letters; carried on by letters.
from The Century Dictionary and Cyclopedia
- Pertaining to epistles or letters; suitable to letters and correspondence; familiar: as, an epistolary style.
- Contained in letters; carried on by letters.
- n. A book formerly in use in the Western Church, containing the liturgical epistles.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. written in the form of or carried on by letters or correspondence
Letters for the Memorable Year (1987)  details in epistolary form many actual experiences of the author (here called K).
In addition, “YR, YR, YR” is humorous, is written in epistolary form (as a cover letter to editor Gardner Dozois), and is set in my home town of Fairbanks, Alaska.
The end result, a tiny novella in epistolary form and shining a spotlight on life in
Then I go carefully over the columns of the weekly, clip out all the available personals and news items, about weddings, and engagements, and teas, etc., hash them up in epistolary style, forge the Windsor correspondent's nom de plume – and there's your society letter!
Where we would say "testifies," the ancients in epistolary communications use the past tense.
‘We write to one another,’ said Rosa, pouting, as she recalled their epistolary differences.
"We write to one another," said Rosa, pouting, as she recalled their epistolary differences.
Of all branches of prose composition, the epistolary was the most carefully cultivated.
'We write to one another,' said Rosa, pouting, as she recalled their epistolary differences.
And it is a poem addressed to someone who is there to read it (while the book's readers read over his shoulder) so it is of course more relaxed, and, at the same time, takes up, or I hope it does, the challenge of writing an "epistolary" poem of interest to others than the recipient of the letter.