also hors·ey H0286300 (hôr′sē)adj.hors·i·er, hors·i·est1. Of, relating to, or resembling horses or a horse.2. Devoted to horses and horsemanship: the horsy set.3. Large and clumsy: illustrations that looked horsy on the page.hors′i·ly adv.hors′i·ness n.