Antonyms of adj postmeridian
1 sense of postmeridian
Sense 1
postmeridian (vs. antemeridian) -- (after noon)
antemeridian (vs. postmeridian) -- (before noon)
=> ante meridiem, a.m. -- (before noon)
Similarity of adj postmeridian
1 sense of postmeridian
Sense 1
postmeridian (vs. antemeridian) -- (after noon)
=> post meridiem, p.m. -- (after noon)