squarish

Large squarish lateral intercalary blotches of darker brown interconnect with the dorsal blotches.
The Amphibians and Reptiles of Michoacn, Mxico|William E. Duellman
The house stood back from Trafalgar Road in the moonlight—a squarish block of a building.
The Card, A Story Of Adventure In The Five Towns|Arnold Bennett
In consequence the snow quickly melted from the top of it, and it stared out a squarish black mass in the midst of the snow.
The History of the 51st (Highland) Division 1914-1918|Frederick William Bewsher
They are known by the stout spines in the dorsal fins and by their sharp, squarish cutting teeth.
A Guide to the Study of Fishes, Volume 1 (of 2)|David Starr Jordan

Sperm whales (p. 57) have a squarish head that may somewhat resemble that of an adult male northern bottlenosed whale.
Whales, Dolphins, and Porpoises of the Western North Atlantic|Stephen Leatherwood

Origin of squarish