Longman Dictionary of Contemporary English
The Collaborative International Dictionary
Unseasonable \Un*sea"son*a*ble\, a. Not seasonable; being, done, or occurring out of the proper season; ill-timed; untimely; too early or too late; as, he called at an unseasonable hour; unseasonable advice; unseasonable frosts; unseasonable food. -- Un*sea"son*a*ble*ness, n. -- Un*sea"son*a*bly, adv.
Wiktionary
adv. Not in accordance with the season.
WordNet
adv. not in accordance with the season; "it was unseasonably cold" [ant: seasonably]
Usage examples of "unseasonably".
The air was unseasonably warm, and a good thing it was, for otherwise several feet of snow would have buried the area and any plans for a journey south to Palmaris would have had to be put off by several weeks.
The days had been unseasonably warm since February, an extraordinary contrast from the bitter winter that had ended so abruptly.
It was full day now and unseasonably warm, yet she had broken into a cold sweat.
Thus I might, likewise, acquaint him with my motives for thus abruptly and unseasonably deserting his service.
I began, though somewhat unseasonably, to reflect upon the topics with which I should introduce my conversation, and particularly the manner in which I should introduce myself.
Among their exploits, the imperfect relation of which would have unseasonably interrupted the more important series of domestic revolutions, we shall only mention the repeated calamities of the two great cities of Seleucia and Ctesiphon.
She covered it with her one luxury, a lightweight black microfiber coat that was warm against the unseasonably cool autumn winds.
Across the table the Likens were discussing the unseasonably warm weather while around her people chatted in twos and threes.
Among their exploits, the imperfect relation of which would have unseasonably interrupted the more important series of domestic revolutions, we shall only mention the repeated calamities of the two great cities of Seleucia and Ctesiphon.
The lawn was the usual withered brown of Dallas grass in midwinter, but was showing some signs of reviving in the unseasonably warm weather.
For thou now rejectest unseasonably the gift of nature, clinging to something else.
My best friend, Ronnie Sims, and I were sitting in my Jeep with the windows down letting the unseasonably cool air drift in on us.
The local weather forecasters had explained ad nauseam about how this version of the El Nino phenomenon had affected the global climate and inflicted unseasonably hot weather on their country, for which they all felt the need to apologize.