knob·by /ˈnɑbɪ/ 形容詞
1. Full of, or covered with, knobs or hard protuberances.
2. Irregular; stubborn in particulars. [Obs.]
The informers continued in a knobby kind of obstinacy. --Howell.
3. Abounding in rounded hills or mountains; hilly. [U.S.]
adj : having knobs; "had knobbly knees" [syn: knobbly]