Definition of "unseasonable" []

• Not suitable to or appropriate for the season. (adjective)
• Not characteristic of the time of year: unseasonable weather. (adjective)
• Poorly timed; inopportune. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "It was one of those days in June, in which our summer-hopes take umbrage at what we call unseasonable weather, though no season was ever known to pass without them."
• "This hour seemed to him and to Mrs. Peterkin unseasonable, at a time of year when the sun was not up, and he would have been obliged to go to the expense of candles."
• "Rene Heroux, a meteorologist with Environment Canada, called the unseasonable weather a heat wave."