Emily Dickinson Lexicon

UN-SEA'SON-A-BLE, a. [unsee'znable.]

1. Not seasonable; not being in the proper season or time. He called at an unseasonable hour.
2. Not suited to the time or occasion; unfit; untimely; ill timed; as, unseasonable advice; an unseasonable digression.
3. Late; being beyond the usual time. He came home at an unseasonable time of night.
4. Not agreeable to the time of the year; as, an unseasonable frost. The frosts of 1816, in June, July and August in New England, were considered unseasonable, as they were unusual.