adj.
Pronunciation: i- ' pis-t ə - ˌ ler- ē , ˌ e-pi- ' sto ̇ -l ə -r ē
Function: adjective
Date: circa 1656
1 : of, relating to, or suitable to a letter
2 : contained in or carried on by letters <an endless sequence of ⋯ epistolary love affairs ― Times Lit. Supp. >
3 : written in the form of a series of letters <an epistolary novel>