The Collaborative International Dictionary of English v.0.48:
year-round \year"-round\, adj. 1. operating or continuing throughout the year; as, a year-round resort; a year-round job. Antonym of seasonal. Syn: year-around. [WordNet 1.5]WordNet (r) 3.0 (2006):
year-round adj 1: operating or continuing throughout the year; "a year- round resort"; "a year-round job" [syn: year-round, year-around] [ant: seasonal]