Hakea obtusa is an open, rounded, stiff shrub typically growing to a height of and does not form a lignotuber. It blooms profusely from May to September and produces sweetly scented white and pink flowers with long creamy white styles which appear at the nodes on bare wood. The leaves are oblong-elliptic long by wide with 3 distinctive longitudinal veins ending in a blunt point. The fruit are rough ovoid ending in a short sharp beak.