Modifies a noun

• problem: There has to be a solution to the knotty problems in the town.

• question: One knotty question to be faced in the coming year is how to bring the firm's three current Exeter offices together.

• issue: Graham Norwood probes the knotty issue of building consent.

• eye: The Saw-Horse gave an angry prance and rolled one knotty eye backward toward Tip.

• tree: Help save the ancient trees of Gwent 'Old, gnarled and knotty trees?

• one: Instead of being the simplest case in the world, it had somehow turned out to be an excessively knotty one.

Modifying Another Word

• particularly: Short-term funding and lack of full cost recovery are particularly knotty problems.