Definition of "squarish"

When they reached the foot of the hill they caught a glimpse of what might be rocks on each side—squarish rocks, if you looked at them carefully, but no one did.

1953, C. S. Lewis, chapter 7, in The Silver Chair, Collins, published 1998

The cars, which are of pleasing but somewhat squarish outline, are unstreamlined.

1963 August, W. Shepherd, “Stockholm's modern underground railway”, in Modern Railways, page 96

She gaily thrust her squarish chin toward the front of the tent.

1996, Kenzaburō Ōe, An Echo of Heaven (1989), translated by Margaret Mitsutani, Tokyo: Kondansha International, Chapter 1, p. 22