Modifies a noun

• tire: On badly made roads, the hard tires were far less giving than knobbly mountain bike tires.

• knee: I didn't realize he had such knobbly knees!

• bit: Apart from a certain baroque flourish, there were no knobbly bits inside either.

• root: The mage lifted off the cover to reveal a selection of knobbly roots.

• appearance: Despite their knobbly appearance and the stiffness and pain, arthritic joints can continue to give good service for many years.

• swelling: Gradually, over several years, firm knobbly swellings form on the back of the joints ( see Figure 6 ).

Modifying Another Word

• very: The batter was crisp and very knobbly, and the vegetables dry and not oily, all just as it should be.

• slightly: It felt cold - metallic - and slightly knobbly with rust.