Hakea repullulans is an erect shrub growing tall. It resprouts from a lignotuber often suckering from horizontal roots. The branchlets are densely covered with short, soft, mattedhairs and become smooth at flowering. The leaves can be narrowly egg-shaped to long and narrow and twisted at the base long and wide with generally 3-5 prominent longitudinal veins above and below. Each inflorescence has 10–36 cream-white flowersappearing in the leaf axils. Flowering occurs mostly in spring and the fruit is obliquely egg-shaped, slightly curved towards apex, long, wide, and tapering to a small beak.