Antonyms of adj epistolary

1 sense of epistolary

Sense 1
epistolary, epistolatory -- (written in the form of or carried on by letters or correspondence; "an endless sequence of epistolary love affairs"; "the epistolatory novel")

INDIRECT (VIA informal) -> formal -- ((of spoken and written language) adhering to traditional standards of correctness and without casual, contracted, and colloquial forms; "the paper was written in formal English")

Similarity of adj epistolary

1 sense of epistolary

Sense 1
epistolary, epistolatory -- (written in the form of or carried on by letters or correspondence; "an endless sequence of epistolary love affairs"; "the epistolatory novel")
       => informal (vs. formal) -- (used of spoken and written language)