• Webster's Revised Unabridged Dictionary
    • a Seasonless Without succession of the seasons.
    • ***
Century Dictionary and Cyclopedia
    • seasonless Unmarked by a succession of seasons.
    • seasonless Without seasoning or relish; insipid.
    • ***
Chambers's Twentieth Century Dictionary
    • adj Seasonless without relish: insipid
    • ***


In poetry:

Then over the seasonless sea he came,
And jocundly answered her, name for name,
And, falsely flitting from copse to cover,
Made musical mock of the jilted lover.
"The Passing Of Spring" by Alfred Austin

In news:

Fashion folk are often found going on about the value a certain garment might have in being seasonless, or how a summer piece can work in the colder months if only you invest in the right pair of tights or the perfect tailored blazer.
Not only is it seasonless and easy to wear, but it's a different way to rock the relaxed vibe when you're not in the mood for the old trusty t-shirt line.