| Briar 1. (n.) Same as Brier. 2. (n.) A plant with a slender woody stem bearing stout prickles; especially, species of Rosa, Rubus, and Smilax. 3. (n.) Fig.: Anything sharp or unpleasant to the feelings. Thesaurus Entries adherent, adhesive, barnacle, bramble, brier, brier bush, bristle, bulldog, burr, bush, cactus, catchweed, cement, cleavers, decal, decalcomania, glue, goose grass, gunk, leech, limpet, molasses, mucilage, needle, nettle, paste, pine needle, plaster, prickle, quill, remora, scrub, shrub, shrubbery, spicule, spiculum, spike, spikelet, spine, sticker, syrup, thistle, thorn, yucca | ![]() |