Antonyms and Synonyms for autumnal-equinox
1. autumnal equinox (n.)
(astronomy) the equinoctial point that lies in the constellation of Virgo
2. autumnal equinox (n.)
September 22
3. autumnal (adj.)
characteristic of late maturity verging on decline
4. autumnal (adj.)
of or characteristic of or occurring in autumn
5. equinox (n.)
either of two times of the year when the sun crosses the plane of the earth's equator and day and night are of equal length
6. equinox (n.)
(astronomy) either of the two celestial points at which the celestial equator intersects the ecliptic
