It has smooth bark, sometimes with ribbons of rough bark at the base, lance-shaped adult leaves, flower buds usually in groups of seven, pale yellow flowers and cylindrical to barrel-shaped fruit.

Eucalyptus singularis is a mallet that typically grows to a height of 6 m (20 ft) but does not form a lignotuber.

[5] The specific epithet (singularis) is a Latin word meaning "along" or "solitary", referring to the habit of this species compared to others in the E. incrassata group.

[4] This mallet grows in shallow sand over laterite north-west of Ravensthorpe towards Lake Magenta, Dragon Rocks and Dumbleyung in the Esperance Plains and Mallee biogeographic regions.

[3][6] This eucalypt is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife.