Definition of "roundish"

Leaflets 9-11, roundish, of a firm texture, the lowest pair smaller than the rest, glaucous.

1820, John Lindley, Rosarum Monographia; Or, A Botanical History of Roses, page 42

A doorknob of whatever roundish shape is effectively a continuum of levers, with the axis of the latching mechanism—known as the spindle—being the fulcrum about which the turning takes place.

2012 March, Henry Petroski, “Opening Doors”, in American Scientist‎, volume 100, number 2, pages 112–3