bristling /ˈbɹɪs(ə)lɪŋ/adjective 3noun 1forms 3 adjective3 •Having bristles. •Reacting with anger or indignation. •(UK, old-fashioned) Dressed in effective defensive equipment while not seeking a fight. noun1 •The act of one who bristles.When dogs fight, there are usually preliminaries to the actual combat — snarlings and bristlings and stiff-legged struttings. But White Fang learned to omit these preliminaries. — 1906 formsbristlings · more bristling · most bristling