Knobbier

Knobbier is the comparative form of knobby, an adjective used to describe something that has more knobs or knob-like protrusions than another object. The word derives from knob, a rounded lump, with the suffix -y turning it into an adjective, and the comparative suffix -er to indicate a higher degree.

In description, knobbier is used for textures, surfaces, or forms that display a visibly increased number or size of knobs. It is common in geology, landscape description, materials science, horticulture, and textiles, where the emphasis is on tactile or visual irregularity rather than smoothness.

In natural settings, knobbier terrain or rock formations feature irregular, rounded protrusions rather than flat or uniform surfaces. In agriculture or horticulture, knobbier tubers or fruits have more pronounced bumps, ridges, or projections compared with smoother varieties. In consumer products, knobbier tires, grips, or surfaces have larger or more numerous protrusions to enhance traction or tactile feedback.

The term is informal and descriptive; in formal writing it may be replaced with more precise terms such as more protuberant, more knobby, or more tuberculate depending on the context.

See also: knob, knobby, tubercle.