IPA: /ˈnɒbi/
KK: /ˈnɑbi/
Having many knobs or rounded projections; more knobby than something else.
The knobbier surface of the rock made it difficult to climb.
Knobbier → The word 'knobbier' is derived from 'knob' (from Middle English 'knobbe', meaning a rounded lump or protuberance) and the comparative suffix '-ier' (meaning more). Thus, 'knobbier' means having more knobs or being more rounded in shape than something else.
Think of a 'knob' as a rounded bump, and when something is 'knobbier', it simply has more of those rounded bumps.