1) Covered with knobs or knots 2) Crooked 3) Doors and drawers are 4) Gnarled 5) Gnarly 6) Having round protuberances 7) Knotted 8) Knotty 9) Like many a door 10) Like many dresser drawers Found on https://www.crosswordclues.com/clue/knobbed
Knobbed adjective Containing knobs; full of knobs; ending in a nob. See Illust of Antenna . « The horns of a roe deer of Greenland are pointed at the top, and knobbed or tuberous at the bottom.» Grew. Found on http://www.encyclo.co.uk/webster/K/15