An unseasonably cool morning turned into a perfect day.
While the air remained chilly, especially in the shaded patches, it was so clear and unseasonably warm Dean hardly noticed.
It was unseasonably warm for the end of February, but this was the time of year that they might expect a few nice days.
15 seq.: " If any one, I do not say should blaspheme against the Lord of men and gods, but should even dare to utter his name unseasonably, let him expect the penalty of death."
November 30, 1864: Dawn T hat day in 1864 was unseasonably mild for late November.
The word usage examples above have been gathered from various sources to reflect current and historial usage. They do not represent the opinions of YourDictionary.com.