IPA: /ˈnɒbli/
KK: /ˈnɑbli/
Having a lot of knobs or lumps; uneven in shape or texture.
The old tree had a knobbly trunk that twisted in strange directions.
Comparative: knobblier
Superlative: knobblies
Knobblier → It is formed from "knob" (from Middle English *knobbe*, meaning a rounded lump or protuberance) and the suffix "-ier" (meaning more). The word "knobblier" means having more knobs or being more rounded in shape.
Think of a 'knob' as a rounded bump, and when something is 'knobblier', it simply means it has more of those rounded bumps.