seasonless
adjective
sea·son·less ˈsē-zᵊn-ləs 
1
: exhibiting no seasonal changes
2
: not restricted to a particular season
especially : suitable for wearing in any season
seasonless fabrics
Example Sentences
Recent Examples on the Web Somewhere was designed to hit three main points: luxury quality, seasonless style, and perfect fit. 
Kerry Pieri, Harper's BAZAAR, 23 Nov. 2019 So far, Everlane's footwear selection has focused on those sophisticated, seasonless silhouettes people don't swap out every season—the loafer, the boot, the low block heel. Glamour, 18 Apr. 2019 While neutral tones and no-makeup-makeup are seasonless staples that continue to dominate street style and red carpets alike, head-turning pops of color are making a full-blown comeback. Jenna Rennert, Vogue, 10 Oct. 2018 The collections are seasonless capsules and pieces ranging in price from $60 to $350. Brooke Bobb, Vogue, 1 June 2018 That said, these muted, sophisticated versions speak a little softer and feel sufficiently seasonless in the fall. Rebecca Malinsky, WSJ, 17 Aug. 2017 Last fall marked the beginning of a new era for Burberry, one of London’s most iconic fashion houses: the start of buy-now-wear-now, seasonless dressing, and its first coed catwalk. Monica Kim, Vogue, 16 Sep. 2017 See More
Kerry Pieri, Harper's BAZAAR, 23 Nov. 2019 So far, Everlane's footwear selection has focused on those sophisticated, seasonless silhouettes people don't swap out every season—the loafer, the boot, the low block heel. Glamour, 18 Apr. 2019 While neutral tones and no-makeup-makeup are seasonless staples that continue to dominate street style and red carpets alike, head-turning pops of color are making a full-blown comeback. Jenna Rennert, Vogue, 10 Oct. 2018 The collections are seasonless capsules and pieces ranging in price from $60 to $350. Brooke Bobb, Vogue, 1 June 2018 That said, these muted, sophisticated versions speak a little softer and feel sufficiently seasonless in the fall. Rebecca Malinsky, WSJ, 17 Aug. 2017 Last fall marked the beginning of a new era for Burberry, one of London’s most iconic fashion houses: the start of buy-now-wear-now, seasonless dressing, and its first coed catwalk. Monica Kim, Vogue, 16 Sep. 2017 See More Word History
First Known Use
1816, in the meaning defined at sense 1