a. | 1. | Of, belonging to, or peculiar to, autumn; | |||||||||
2. | Past the middle of life; in the third stage.
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Adj. | 1. | autumnal - of or characteristic of or occurring in autumn; "the autumnal equinox"; "autumnal fruits" |
2. | autumnal - characteristic of late maturity verging on decline; "a serene autumnal mood" |