unpluralable Share definition Flag Used as an adjective, meaning a word that, obviously, cannot be pluralized. "Hey, look at those sheeps in that field!" "Sheeps? I'm sorry friend, but sheep is unpluralable." unpluralable by Andy Towler November 1, 2004 0 0 Get merch Get the unpluralable mug. Buy Now — $32.95 See more merch