Noah Webster's Dictionary (a.) Thick set with bristles, or with hairs resembling bristles; rough.

Multi-Version Concordance Bristly (1 Occurrence) Jeremiah 51:27 Lift up a banner in the land, blow the trumpet among the nations, prepare nations against her; call together against her the kingdoms of Ararat, Minni, and Ashkenaz; appoint a captain against her; cause the horses to come up as the bristly caterpillars. (DBY NAS)