Antonyms of adj antemeridian

1 sense of antemeridian

Sense 1
antemeridian (vs. postmeridian) -- (before noon)

postmeridian (vs. antemeridian) -- (after noon)
        => post meridiem, p.m. -- (after noon)

Similarity of adj antemeridian

1 sense of antemeridian

Sense 1
antemeridian (vs. postmeridian) -- (before noon)
       => ante meridiem, a.m. -- (before noon)